List of guitar tunings


This list of guitar tunings supplements the article guitar tunings. In particular, this list contains more examples of open and regular tunings, which are discussed in the article on guitar tunings. In addition, this list also notes dropped tunings.

Open

Major

Major open-tunings give a major chord with the open strings.

Open A

Used by Nickelback on "Should've Listened", Devin Townsend in recent years, and Big Wreck on "Albatross".

Open C

This open C tuning is used by William Ackerman for his "Townsend Shuffle" and by John Fahey for his tribute to Mississippi John Hurt. This tuning is also commonly used by John Butler on his 12 string guitar. This tuning is used on most work by Devin Townsend in his solo work as well as his work with Strapping Young Lad. When playing on a 7 string guitar, he would have a low G as the lowest string to complete the fifth.
The English guitar used a repetitive open-C tuning that approximated a major-thirds tuning.
This open-C tuning gives the initial harmonic series when a C-string is struck.
The C-C-G-C-E-G tuning uses the harmonic sequence of the note C. When an open-note C-string is struck, its harmonic sequence begins with the notes.
This overtone-series tuning was modified by Mick Ralphs, who used a high C rather than the high G for "Can't Get Enough" on Bad Company. Ralphs said, "It needs the open C to have that ring," and "it never really sounds right in standard tuning".

Open D

Open-D tuning is used by Joni Mitchell for her "Big Yellow Taxi", Nick Drake for "Place To Be", Alt-J for "Interlude 2", Boys Like Girls for "Thunder" and by Soko for "No More Home, No More Love".
Open-D tuning has been called Vestapol tuning.
Richie Havens used Open D tuning to be able to play chords using only his thumb and one or two fingers.
This alternative Open D tuning is frequently used by Mark Tremonti guitarist for the bands Creed, Alter Bridge, and Tremonti. It was also used by Keith Richards on "Jumpin' Jack Flash" and the Stone Roses in "Love Spreads".
Same as Open-D but tuned a half-step down. Used by Alice In Chains on the songs "Over Now", "Nothin' Song", and "Shame in You".

Open E

Open F

C-F-C-F-A-C is the more common of the two.
Used by
F-F-C-F-A-C is also used by Dave Mason on "Only You Know and I Know"

Open G

Open G was used in rock by Jimmy Page of Led Zeppelin in the songs "Dancing Days", "That's The Way" and "Black Country Woman", Keith Richards of The Rolling Stones as well as in Mississippi blues by Son House, Charley Patton, and Robert Johnson, some songs by Alter Bridge, and in "Fearless" by Pink Floyd.
Listing the initial six harmonics of the G note, this open-G tuning was used by Joni Mitchell for "Electricity", "For the Roses", and "Hunter ". It was also used by Mick Ralphs for "Hey Hey" on Bad Company's debut album.
and on the Meowtain song "Alleyway" Stone Gossard also used this tuning in the song "Daughter" by Pearl Jam.
The following open-tunings use a minor third, and give a minor chord with open strings. To avoid the relatively cumbersome designation "open D minor", "open C minor", such tunings are sometimes called "cross-note tunings". The term also expresses the fact that, compared to Major chord open tunings, by fretting the lowered string at the first fret, it is possible to produce a major chord very easily.
Cross-note or open E-minor was used by Bukka White and Skip James.
Cross-note tunings include :
In modal tunings, the strings are tuned to form a chord which is not definitively minor or major. These tunings may facilitate very easy chords and unique sounds when the open strings are used as drones. Often these tunings form a suspended chord on the open strings. A well known user of modal tunings is Sonic Youth.
In extended chord tunings, the open strings form a seventh, ninth, or eleventh chord.

Major seconds

A compact tuning that fits within one octave and covers the chromatic scale between open strings and the first fret.

Minor thirds

In the minor-thirds tuning, every interval between successive strings is a minor third. In the minor-thirds tuning beginning with C, the open strings contain the notes of the diminished C chord.

Major thirds

Major-thirds tuning is a regular tuning in which the musical intervals between successive strings are each major thirds. Unlike all-fourths and all-fifths tuning, major-thirds tuning repeats its octave after three strings, which again simplifies the learning of chords and improvisation.
Neighboring the standard tuning is the major-thirds tuning that has the open strings
A lower major-thirds tuning has the open strings
which "contains two octaves of a C augmented chord".

All fourths

This tuning is like that of the lowest four strings in standard tuning. Jazz musician Stanley Jordan plays guitar in all-fourths tuning; he has stated that all-fourths tuning "simplifies the fingerboard, making it logical".

Augmented fourths

Between the all-fifths and all-fourths tunings are augmented-fourth tunings, which are also called "diminished-fifths" or "tritone" tunings.

All fifths: "Mandoguitar"

All-fifths tuning is a tuning in intervals of perfect fifths like that of a mandolin, cello or violin; other names include "perfect fifths" and "fifths". It has a wide range, thus it requires an appropriate range of string gauges. A high b' string is particularly thin and taut, which can be avoided by shifting the scale down by several steps or by a fifth.

New standard tuning

All-fifths tuning has been approximated by the New Standard Tuning of King Crimson's Robert Fripp. It has a wider range than standard tuning, and its perfect-fifth intervals facilitate quartal and quintal harmony.

Ostrich tuning

Ostrich tuning is a tuning where all strings are tuned to the same note over two or three octaves, creating an intense, chorused drone and interesting fingering potential.
Used by Soundgarden on the song "Mind Riot", and by Lou Reed in the Velvet Underground.

Dropped

Drop tunings lower the sixth string, dropping the lowest E string of the standard tuning. Some drop tunings also lower the fifth string. A drop one tuning lowers the pitch by one full step.
Some lower tunings may call for a baritone guitar to more easily maintain high string tension and a rich tone. Others can be achieved using a capo and/or a partial capo.

Examples

Standard tuning but with the 6th string dropped one full step. Utilized by bands and/or artists: HUM, Radiohead, Avenged Sevenfold, Arrowmont, Kvelertak, Led Zeppelin on "Moby Dick", Jack White on the song "High Ball Stepper", Rage Against the Machine, Prayer for Cleansing, Lamb of God, Underoath, Evanescence, Silverchair, Muse, Godsmack, Marilyn Manson, Skillet, Helmet, Soundgarden, Metallica on songs "All Nightmare Long" and "Just a Bullet Away", Chino Moreno of Deftones used this tuning on the songs "Hole in the Earth" and "Beauty School", Rammstein, Sum 41, Fugazi in some songs, Tool in all their albums, Papa Roach, Every Time I Die, Three Days Grace, Seether, Trivium, C3 Church on their song "Breathe", as well as numerous songs on older albums, Nickelback, Stone Temple Pilots in some songs, Audioslave, Filter, Foo Fighters, Porcupine Tree, Incubus on some songs, Guns N' Roses on "Chinese Democracy" and "Sorry" from Chinese Democracy, Black Veil Brides, The Devil Wears Prada, Nirvana in some songs, Zakk Wylde in some of his projects, Quicksand, Alesana, Eyes Set to Kill, and The Beatles on "Dear Prudence", Iron Maiden on "If Eternity Should Fail", Jorma Kaukonen of Jefferson Airplane on Embryonic Journey from the Surrealistic Pillow album, All Time Low on the biggest part of their discography.
One half step down from Drop D. Utilized by bands like Guía Luz Negra, Dir En Grey, Our Lady Peace, Your Demise, Oceana, Alter Bridge, Alice in Chains on some songs, A Day to Remember, Chevelle, Of Mice & Men, Sleeping With Sirens on their debut album With Ears to See and Eyes to Hear, Deftones, Evanescence, Paramore, Disturbed, Theory of a Deadman, Puddle of Mudd, Sum 41, Linkin Park, Three Days Grace, Sevendust, Breaking Benjamin primarily on Saturate, Skillet, Black Veil Brides, Steel Panther, 10 Years, Black Stone Cherry, Saint Asonia, Truckfighters, Attila, Fireball Ministry, Memphis May Fire, RED on End of Silence, Nirvana on In Utero, "Blew" live performances, "Been a Son", the Nevermind album and also by System of a Down. Also used by Lamb of God on their albums Wrath and VII: Sturm und Drang, and almost exclusively on their album Resolution. Avenged Sevenfold, Norma Jean, Guns N' Roses used this tuning on "Better" and "Shackler's Revenge" from Chinese Democracy. Metallica used this tuning on their song "Minus Human" off S&M, on "Dirty Window" from their album St. Anger and live performances of songs recorded in Drop D, Seether, As I Lay Dying have used this tuning on a few songs. Trivium used this tuning on their albums In Waves and Vengeance Falls and every 6-strings song recorded since, they also play all of their 6-strings songs in this tuning in their live shows. Van Halen on their 1981 song "Unchained". Godsmack on select songs from When Legends Rise and on their song "Something Different". The Presidents of the United States of America use guitars tuned to this tuning with the top three strings removed, although on Freaked Out and Small, regularly strung guitars were used. Oceans Ate Alaska, Tyler Bryant & the Shakedown use this tuning on some songs, Finding September
One full step down from Drop D. Utilized by bands like A Day to Remember, Biffy Clyro, Sleeping With Sirens, Swallow the Sun in all their albums, The Ocean Collective in the Heliocentric / Anthropocentric albums, Slo Burn, Bullet for My Valentine, Evanescence, Children of Bodom, Disciple, Demon Hunter, Disturbed, Avenged Sevenfold on the song "Radiant Eclipse", As I Lay Dying, Asking Alexandria on Reckless and Relentless, Rammstein, Nothing More, Falling in Reverse, Fozzy, August Burns Red, Mastodon, Helmet, Tonight Alive, Converge, System of a Down, What Great Fangs, Black Stone Cherry, Chimaira, P.O.D., Black Veil Brides, Ill Niño, Killswitch Engage, Deftones, Disturbed, Gojira, Metallica on St. Anger, Rob Zombie, Bad Omens, The Faceless, Nonpoint, Atreyu, Darkest Hour, Nickelback, Breaking Benjamin on majority of We Are Not Alone among others, Mudvayne, Sick Puppies, Three Days Grace, Chevelle since Hats Off to the Bull, Blessthefall, Job for a Cowboy, As Blood Runs Black, Beartooth, While She Sleeps, Hellyeah, Godsmack, Born of Osiris Periphery, Cancer Bats, Slipknot, Zakk Wylde, Escape the Fate, Alter Bridge, Seether, Dope, Skillet, Nirvana on their Bleach album, Porcupine Tree on the songs Anesthetize and Cheating the Polygraph, Finding September
One and one half steps down from Drop D. This tuning is most often used by modern rock and heavy metal bands. Utilized by bands like Gatecreeper, A Day to Remember, August Burns Red, Slayer, Slipknot, Intronaut, Down, Machine Head, Stone Sour, Demon Hunter, Black Veil Brides, Chevelle, Origin, Motionless in White, Sleeping With Sirens on some songs, Asking Alexandria on their third and fourth albums, From Death To Destiny and The Black respectively, RED, Bleeding Through, I Prevail, Parkway Drive, DevilDriver, Skillet, Veil of Maya, Bring Me the Horizon, Sevendust, Soilwork, Bury Tomorrow, Chimaira, Eye Empire, Crown the Empire, The Devil Wears Prada, The Amity Affliction, Norma Jean, Nothing More, Drowning Pool, Code Orange, Mudvayne on their album LD 50, Bleed from Within, Attila, The Veer Union, Comfort in the End, Attack Attack!, Mark Tremonti, All That Remains, Bullet for My Valentine, Nickelback on the songs "See You at the Show" and "Side of a Bullet", Disturbed on some songs starting from Immortalized and occasionally Black Stone Cherry, Limp Bizkit, The Kills, and Sucioperro.
Two full steps down from Drop D. Utilized by bands such as A Day to Remember, In Flames, Hostility, Issues, Static-X, Motionless in White, Bring Me the Horizon, Hellyeah, August Burns Red, The Ghost Inside, While She Sleeps, Beartooth, Disturbed on select songs from the album "Evolution", Amaranthe, Breaking Benjamin, Parkway Drive, Otep, Memphis May Fire, Bad Omens, Like Moths to Flames, Spineshank, RED, Bury Tomorrow, Wage War, The Acacia Strain and Erra, Bury Your Dead, Eye Empire, Dirge Within, Remembering Never, Metallica on the song "The Unnamed Feeling" from St. Anger, Chevelle, The Amity Affliction, Acid Bath, Obey the Brave, Fit for a King, Darkest Hour, Fozzy, Evanescence, 9oz. of Nothing, Sybreed and For the Fallen Dreams.
Two and one half steps down from Drop D. This tuning is most often used by death metal or deathcore musicians, such as Betraying the Martyrs, Carnifex, Oceano, Suicide Silence, or Whitechapel. Utilized by bands like Nile, The Acacia Strain, Motograter, Thrice, Filter, Jinjer, Motionless in White, Of Mice & Men, Norma Jean, The Devil Wears Prada on some songs, Dead by April, RED, Ill Niño and occasionally Slipknot, Crowbar, and Amon Amarth. Make Them Suffer, The Ghost Inside on the songs "Out of Control" and "This Is What I Know About Sacrifice", Five Finger Death Punch, and Parkway Drive on some songs from Deep Blue. Trapt uses this tuning on their songs "Hollow Man", "Waiting", and "Sound Off". Sleeping With Sirens on their songs "Medicine ", "Ghost", and "P.S. Missing You" from their album How It Feels To Be Lost
Three full steps down from Drop D. Utilized by Hypocrisy, Dead by April, Metallica in the song "Invisible Kid" from St. Anger, Memphis May Fire, Asking Alexandria on their self-titled album, Damien Deadson, Love and Death, Wage War, and The Acacia Strain. Staind also uses this tuning, as well as several other modified variations of this, such as one in which the 5th string is also dropped from D# to C#.
Three and one half steps down from Drop D. Used by Darkest Hour on the song "Wasteland", Attack Attack!, Baroness, Sleeping With Sirens on the song "Blood Lines", Bring Me the Horizon on a few songs from their album Suicide Season, Dead by April and In Flames. Also Pantera and Whitechapel recorded Sandblasted Skin in G-g-C-F-A-D, Drop G variation with D standard. Soulfly used this tuning on "Eye for an Eye" on their self-titled album, although live performances of this song are now in A standard.
Four full steps down from Drop D, or two full steps up from Drop D1. Used by Disfiguring the Goddess. In the recording of Limp Bizkit's song "Nookie", Wes Borland used a custom 4 string baritone guitar tuned F#-F#-B-E. Also Slipknot recorded their song "Scissors" from their debut album in F#-F#-B-E-G#-C#.
Four and one half steps down from Drop D, or one and a half steps up from Drop D1. Used by Attack Attack! on "The Wretched" off "This Means War"
Five full steps down from Drop D, or one full step up from Drop D1. Another Variation can be mixed with a Drop A as follows: E-A-e-a-D-G-B-e modeled on an 8 string or E-A-e-a-D-F#-B/E-A-e-a-D-Gb-Cb on a 7 string.
Five and one half steps down from Drop D, or one half step up from Drop D1. This can also be a Drop D# standard octave variant tuning modeled on an 8 string D#-G#-d#-g#-C#-F#-A#-d#
Six full steps down from Drop D. 8 string example; D-A-d-a-d-G-B-E. Black Tongue uses this tuning.
Six full steps down from Drop C/Drop D. Used on some After The Burial songs.
Six full steps down from Drop C. Used by Within the Ruins on the album Phenomena with the variation C-F-c-f-A#-D-G.
Standard tuning but with the 6th string lowered one and a half steps. Used by Sevendust tuned one and one half-step down on some songs from "Home" through "Alpha".
Standard tuning but with the 6th string lowered two whole steps. Used by Mark Tremonti on the song "My Champion" as well as Sevendust on the song "Mountain". Also used by John Mayer on the song “Neon”, and by Chino Moreno of Deftones on some songs such as "Swerve City" and "Hearts/Wires", tuned down a full step.
Claimed to have been invented by guitarist Victor Griffin of Pentagram. Also used in the song "March of the Fire Ants" by Mastodon, "Rusty Cage" "Holy Water", and "Searching With My Good Eye Closed" by Soundgarden on their Badmotorfinger album, "Cowboy Hat" and some of "Silver Side Up" by Nickelback, "Gasoline", "Shadow on the Sun", "Bring Em Back Alive" and "The Worm" by Audioslave and "Prison Sex" by Tool. Today is the Day have used it on every album since Temple of the Morning Star, Shining use it on most of their album Blackjazz, and Black Label Society used this on much of their early material, often to emulate a 7-string guitar. Used also by Silverchair in the songs "One Way Mule" and "The Lever" from their album Diorama.
Standard tuning with the 6th and 5th string lowered two and a half steps down. Used by Tool in the songs Parabol and "Parabola".

Shifted

These tunings are derived by systematic increases or decreases to standard tuning.

Lowered (Standard)

Derived from standard EADGBE, all the strings are tuned lower by the same interval, thus providing the same chord positions transposed to a lower key. Lower tunings are popular among rock and heavy metal bands. The reason for tuning down below standard pitch is usually either to accommodate a singer's vocal range or to get a deeper/heavier sound.
Half a step down from standard tuning. Used by bands/artists such as: Jimi Hendrix, Coheed and Cambria, Black Sabbath, Motörhead, Cannibal Corpse, Deicide, Deftones, Dark Tranquillity, Nirvana, AFI, Rise Against, Failure, Weezer, Seether, Green Day, Protest the Hero, Kiss, The Hellacopters, Backyard Babies, Disturbed, Guns N' Roses, Neil Young, Van Halen, Brand New, Blind Guardian, Metallica, AC/DC, Slayer, Alcest, Rage Against the Machine, Stevie Ray Vaughan, John Prine, Yngwie Malmsteen, Dream Theater, Alice in Chains, The Smashing Pumpkins, The Killers, Relient K, Suede, RED on "Not Alone", Beach House, Ugly Kid Joe on their cover of "Cat's in the Cradle", Third Day, Die Ärzte Skillet, and Vertical Horizon, Tyler Bryant & the Shakedown, Finding September.
One full step down from standard tuning. Used by bands/artists such as Mötley Crüe, Nightwish, Pantera, P.O.D., Sepultura, Dimmu Borgir, Cradle of Filth, Behemoth, Insomnium, Watain, In Solitude, Agalloch, Inquisition, Drive-By Truckers, Soulfly, Children of Bodom, Symphony X, Oceansize, Death, Decrepit Birth, Dream Theater, All That Remains, Baroness, Napalm Death, Volbeat, Seether on "Country Song", Exodus, Gojira, John Prine, Shadows Fall, Mastodon, Ghost, Lordi, Killswitch Engage, and Kreator. Used in a vast majority of songs by musician Elliott Smith, and also in some songs by Johnny Cash. Also used in Nirvana's songs "Come As You Are", "Lithium" and "Drain You", Metallica in their songs "Sad but True", "Devil's Dance", their cover of "Whiskey in the Jar", as well some of their covers on The $5.98 E.P. - Garage Days Re-Revisited,"Dream No More", "The Thing That Should Not Be" and in live performances of "The God That Failed" and "Seek and Destroy", Bullet for My Valentine on several songs on Scream Aim Fire, blink-182 in "Adam's Song", in Doug Anthony All Stars live performances and John Fogerty.
One and a half steps down. Famously used by Black Sabbath's Tony Iommi in the 1970s, as well as Carrie Brownstein, Dimebag Darrell of Pantera, Behemoth, Eyehategod, Decapitated, Architects, Dying Fetus, Anata, Corin Tucker of Sleater-Kinney, Between the Buried and Me, Machine Head, Down, Suffocation, All That Remains, Bolt Thrower, Pete Loeffler of Chevelle, Billy Howerdel of A Perfect Circle and Ashes Divide, Guns N' Roses, Attila, Slayer, and Stone Sour, as well as former guitarist Jim Root's other band Slipknot on the song "Snuff". Also used by Kyuss on the Sons of Kyuss EP and on the songs "Isolation", "Big Bikes" and "Stage III" from Wretch. John Prine downtuned most of his songs to this tuning for the rest of his life following a bout with throat cancer that took a toll on his voice. Used by Metallica on the song "Bad Seed" from the album Reload and live performances of "The Thing That Should Not Be" since 1987 and by blink-182 in "Obvious". Also used on Considered Dead and The Erosion of Sanity by Canadian technical death metal band Gorguts.
Two full steps down from normal tuning. Used by bands such as Queens of the Stone Age, Kyuss, Sleep, Spiritual Beggars, In Flames, The Black Dahlia Murder, Cradle of Filth, Hatebreed, Bring Me The Horizon, First Signs of Frost, Dismember, Dethklok, Suffocation, Immolation, Hypocrisy, High on Fire, Cold, Dream Theater, Arch Enemy, Entombed, Amaranthe, Nails, Nekrofilth, Cataract, and The Smashing Pumpkins.
Two and a half steps down from standard tuning. Used in Swedish death metal by bands such as At The Gates, Dismember, Hypocrisy, Edge of Sanity, Entombed, Amon Amarth, and Arch Enemy, as well as Fear Factory, Carcass, Type O Negative, Cathedral, Seventh Void, Five Finger Death Punch, Fleshgod Apocalypse, Sepultura, Within Temptation, Hatebreed, Triptykon, and guitarist Kirk Windstein of Crowbar and Kingdom of Sorrow.
Three full steps from standard tuning. Used by Adema, Arch Enemy, and The Black, Boris, Cannibal Corpse, Linkin Park on the songs "Somewhere I Belong" and "Easier to Run" from Meteora, Morbid Angel, Father Befouled, Sepultura, Jeff Hanneman of Slayer, Mutoid Man, American Head Charge, Nickelback and Nevermore.
Three and a half steps down from standard tuning. Used by Soulfly, THEMES, Taproot, Xibalba, Yob, Wind Rose, Hypocrisy, Bolt Thrower, Dystopia, Arch Enemy on a few songs and on live performances of A tuned songs and their cover of "Symphony Of Destruction".
Four full steps down from standard tuning. Utilized by Cannibal Corpse on some songs. Used by death/doom metal band Encoffination. Also used by Mark Tremonti on the song "In the Deep".
Four and a half steps down from standard tuning. Used by the Doom Metal band Warhorse and the Brutal Death Metal band Mortician.
Five full steps from standard tuning. Used by the Death Metal band Disfiguring The Goddess.
Five and one half steps down from standard tuning. Used by the deathgrind band Maruta, the instrumental doom metal band Bongripper, and the progressive metal band "Meshuggah".
Six full steps down from standard tuning. The Low E has the same fundamental frequency as a bass guitar, essentially the same standard tuning as a bass guitar but with a high B and E added to mimic a regular guitar. This tuning is used on the Fender Bass VI and similar instruments. Notably used by John Lennon and George Harrison with The Beatles, Robert Smith of The Cure and Jack Bruce of Cream. In his early days with Ronnie Hawkins, future Band bassist Rick Danko was also seen with a Fender Bass VI. This is the tuning Earth used on their seminal drone doom album, Earth 2. Also used in some Doom Metal and Sludge Metal bands such as Thou.

Raised

From standard EADGBE, all the strings are tuned up by the same interval. String tension will be higher. Typically requires thinner gauge strings, particularly the first string which could be as thin as six thousandths of an inch. A capo is typically preferred over these tunings, as they do not increase neck strain, etc. The advantage of these tunings is that they allow an extended upper note range versus a capo used with standard tuning which limits the number of notes that can be played; in some cases, instruo B or E are more easily played when the accompanying guitar plays chords in the higher tuning. If standard gauge strings are used, the result is often a "brighter" or "tighter" sound; this was a common practice for some bluegrass bands in the 1950s, notably Flatt & Scruggs.
Half a step up from standard tuning. Used in most of Johnny Cash's music, for "Love Buzz" on Nirvana's Bleach album - apparently by mistake, 3 Doors Down on "Here Without You", Vektor, Soundgarden's "Black Hole Sun", Nickelback on their song "When We Stand Together", Burzum on his first 3 albums, Immortal on Pure Holocaust, John Fedowitz in his solo project "Ceremony", Joe Jackson on "Got the Time", and Social Distortion on "Ring of Fire".
One full step up from standard. Primary tuning for the band The Chameleons. Johnny Marr also used this tuning extensively with The Smiths; bassist Andy Rourke remained in standard, however, even when Marr was playing in F#. British singer-songwriter Dave Mason also plays in F#. Alex Lifeson of Rush used this tuning on the song "The Big Money". Tremonti uses a variation of this tuning where only the 6th string is raised to F# while the rest of the guitar stays in standard tuning, and then tuning down the whole guitar one and a half steps, on the song "Trust".
One and one half steps up from standard.
Two full steps up from standard.
Two and one half steps up from standard. This is the standard tuning for the Lapstick travel guitar.
Three full steps up from standard.

Double-dropped

Similar to the dropped tunings, except that both the 1st and 6th strings are dropped one full step.
Standard tuning but with the 1st and 6th strings dropped one full step. Favored by Neil Young. Has also been used by Lamb of God on some of their earlier songs.
Same as Drop D, but every string is dropped one half step. Used by the acoustic rock band Days of the New. Also used by Our Lady Peace on the song "Starseed", as well as Los Angeles based Alternative band Failure, for the track "Sergeant Politeness". Also used by Tremonti on the song "Fall Again", as well as Myles Kennedy on the song "Cry a River"
One full step down from Drop D. Used by Sevendust on the song "Seasons".
One and one half steps down from Drop D. Used by Aaron Turner of Isis.
Two full steps down from Drop D.
Two and one half steps down from Drop D.
Three full steps down from Drop D.
Three and one half steps down from Drop D.
Four full steps down from Drop D, or two full steps up from Drop D1.
Four and one half steps down from Drop D, or one and a half steps up from Drop D1.
Five full steps down from Drop D, or one full step up from Drop D1.
Five and one half steps down from Drop D, or one half step up from Drop D1.
Six full steps down from Double Drop D.

Miscellaneous

Dad-Gad

DADGAD was developed by Davey Graham in the early 1960s when he was travelling in Morocco, to more easily play along with Oud music Among the first to use this tuning were the folk-blues guitarists of the '60s like Bert Jansch, John Renbourn, Martin Carthy, and John Martyn. It was many years later in the 1970s that it became established for accompanists of traditional music, predominantly Scottish and Irish. Due to this popularity it is sometimes referred to as "Celtic" tuning, although this is misleading given its origin and its primary early use in a quite different field of music. Often vocalized as "Dad-Gad", DADGAD it is now common in Celtic music. In rock music, has been used in Led Zeppelin's "Kashmir". Pierre Bensusan is another noted exponent of this tuning. The post-metal group Russian Circles also employ this tuning, and also plays it tuned a half-step down: D-A-d-g-a-d'. Three down-tuned variations are used by the band Sevendust: A Drop C variation, or C-G-c-f-g-c'., a Drop B variation, or B'-F-B-e-f-b, and a Drop A# variation, or A'-F-A-d-f-a. Neighboring tunings D-A-d-e-a-e' and C-G-c-d-g-a have been used by Martin Carthy. Also D-A-d-a-a-d', was used by Dave Wakeling on the English Beat's 1983 "Save It For Later".

Dad-Dad

Nicknamed - "Papa-Papa". DADDAD is common in folk music, and for the execution of a rhythm guitar in "heavy" on 6th on the third string at the same time. To reach the tuning from DADGAD, Open D or Open D Minor, the G string is dropped to D so that the 3rd and 4th strings are tuned to the same pitch. DADDAD tuning is sometimes used on Dobro guitars for rock and blues. Notable users of this tuning include Billy McLaughlin and John Butler.

Cello/Standard guitar

Essentially a cello tuning with the deeper four strings in fifths and the two highest strings in standard guitar tuning. Used on numerous Pavement songs and by Foo Fighters on the song "Weenie Beenie"

"Karnivool" tuning

Hybrid tuning between drop B-tuning and E-standard. Used by the band Karnivool for many of their songs.

Mi-composé

Mi-composé is a tuning commonly used for rhythm guitar in African popular music forms such as soukous and makossa. It is similar to the standard guitar tuning, except that the d string is raised an entire octave. This is accomplished by replacing the d string with an e' string and tuning it to d'.

"Iris" Tuning

Tuning used by Johnny Rzeznik of the Goo Goo Dolls on the song "Iris".

E-A-C#-F#-A-C# ("Sleeping Ute")

Tuning used by Grizzly Bear guitarist Daniel Rossen in "Sleeping Ute", the opening song of their album Shields. Creates an F#m7/E chord when strummed open.

José González tuning

D-A-D-G-B-E
This is a tuning favored by the Swedish singer-songwriter José González. He uses this on such songs as "Crosses", "Heartbeats" and "Cycling Trivialities". It is similar to the standard guitar tuning, but the low E string is dropped to D and the G string is dropped a half step to F/G.
Dadd9 tuning
D-A-D-F#-A-E. This tuning is used by Tonic in their song with a capo on the 4th fret.

Mr.Tom tuning

D-F#-A-E-F#-A
This tuning was made by songwriter/composer Mr.Tom during the creation of an original indie folk instrumental "When You Stand By Me" . The tuning is based on the D Open tuning.

Microtonal tuning

The open strings of a guitar can be tuned to microtonal intervals, however microtonal scales cannot easily be played on a conventional guitar because the frets only allow for a chromatic scale of twelve equally spaced pitches, each a semitone apart. It is possible to play microtonal scales on a fretless guitar, to convert a fretted guitar into a fretless, or to make a custom neck with a specific microtonal fret spacing.
Guitars can also be refretted to a microtonal scale. On many refretted microtonal guitars, the frets are split, so that the tuning of each string is independent from the others. To enable an adjustable microtonal tuning, there exist guitars with frets that can be moved across the fingerboard.
Extended techniques such as the 3rd bridge technique, slide guitar and prepared guitar techniques can be used to produce microtonality without severe modification to the instrument.

Guitar tunings inspired by other Instruments

In his on-line guide to alternative tunings for six-string guitars, William Sethares mentions several that are inspired by instruments other than guitars, for example, balalaika, cittern C-G-C-G-C-G, and Dobro G-B-D-G-B-D.

Extended range and other guitar tunings

Five-string

Five string guitars are common in Brazil, where they are known as guitarra baiana and are typically tuned in 5ths. Schecter Guitar Research produced a production model 5 string guitar called the Celloblaster in 1998. A five-string tuning may be necessary in a pinch when a string breaks on a standard six-string and no replacement is immediately available.
Some basic five-string tunings include:
Similar to five-string bass guitar tuning, seven-string tuning allows for the extra string a fourth lower than the original sixth string. This allows for the note range of B standard tuning without transposing E standard guitar chords down two and a half steps down. Baritone 7-string guitars are available which features a longer scale-length allowing it to be tuned to a lower range.
This is the standard seven-string tuning with the low B string dropped to A.
Standard seven-string tuning for Brazilian choro.
Standard seven-string tuning with the low E dropped to D, which results in a minor 3rd interval between the two lowest strings of B and D. Used by Ed Sloan of Crossfade. Also used by Animals as Leaders on the song "CAFO". A flat variation of this tuning is used by Periphery on the song “Racecar”.
Seven-string tuning with the low E string dropped to D and a low A added below. Used extensively by Dir En Grey since the album "Dum Spiro Spero" as well as the song "Obscure" from the album Vulgar. Also used by Stam1na.
Same range as standard six-string. Allows over two full chromatic octaves without changing position, slides or bends.
Expands the major third between the second and third strings, extending range a half step higher.
Half a step down from standard, used by bands such as TesseracT and Meshuggah in their earlier days, Jeff Loomis, Cannibal Corpse mid-career, Hypocrisy, Adema, American Head Charge, Sonata Arctica, Mushroomhead, Korn in Neidermeyer's Mind demo album, Revocation, Dir En Grey since "Dum Spiro Spero," After The Burial, Chad Kroeger of Nickelback on the song "This Means War", Slayer, Trivium on Silence in the Snow, The Sin and the Sentence, What the Dead Men Say and all live performances of songs previously written on standard tuned seven string guitars.
A full step down from standard. Used by bands such as Korn, Paradise Lost, Dream Theater, VUUR, Obscura, ReVamp, Hypocrisy, Job for a Cowboy on "Sun Eater", and Fear Factory
One and one half steps down from standard. Used by bands such as Deftones and Korn. Also used by Mark Tremonti on the song "Show Me A Leader" and Spiritbox.
Two full steps down from standard tuning. Used by Luc Lemay of Gorguts
Two and one half steps down from standard. Used by Danish band Mnemic in the albums Passenger, Sons of the System, and Mnemesis. Fear Factory also used this tuning for their cover of Wiseblood's "0-0 ", while their all other songs tuned in F/G were played with eight-string guitars.
Three full steps down from standard. Used by Suicide Silence on the song "Witness The Addiction" and Meshuggah during the recording of Nothing. The songs are played live using 8 string guitars.
Three and one half steps down from standard.
Four full steps down from standard.
Four and one half steps down from standard.
Five full steps down from standard.
Five and one half steps down from standard.
Six full steps down from standard tuning.
The open C tuning for 7-string guitar was Devin Townsend's preferred tuning for the extreme metal band Strapping Young Lad.

Higher

Half a step up from standard, used by Eddie Rendini during his time in Cold.
The whole step up from standard. This tuning was used by Wes Borland with high E-string being lowered to C on the first two Limp Bizkit records.

Dropped

These tunings have the lowest string, and occasionally Scar Symmetry, King 810, Dry Kill Logic, Eldest 11, December In Red, A Fall To Break, and CFO$ on some songs. Also used by Nickelback on "Edge of a Revolution" and "Get 'Em Up".
The same as drop A tuning for a 6-string on the low strings while retaining a high E. In effect converts a 7-string into a drop A baritone guitar, but with standard tuning's soloing capability. Used by Lorna Shore, Volumes, and Whitechapel on the song "This Is Exile".
One half step down from standard Drop A. Used by bands such as Trivium on some songs from Silence in the Snow, The Sin and the Sentence and What the Dead Men Say, Destrophy, TesseracT, 3TEETH, After The Burial, I Declare War, Impending Doom, Within the Ruins, In Hearts Wake, Shokran, Currents, Erra, Thy Art Is Murder on the song "Slaves Beyond Death", Emmure on the song "Flag Of The Beast" Periphery, and Invent Animate. Jim Johnston used this tuning for the song "I Bring the Darkness ".
A full step from standard Drop A, used by such bands as Molotov Solution, Impending Doom, Emmure on the song "Protoman", Chelsea Grin, Attack Attack! on their album This Means War, Any Given Day, Fit for an Autopsy, Chimaira, Knocked Loose, Crystal Lake, Whitechapel, Thy Art Is Murder on the song "Human Target" and "Eternal Suffering", and Born of Osiris since their album The Discovery.
One and one half steps down from standard Drop A. Used by Deftones, Rivers of Nihil, Shokran, Volumes, Spiritbox, Erra, and Thornhill.
Two full steps down from standard Drop A. This tuning is used on three tracks on Attack Attack!'s album This Means War: "The Hopeless," "The Abduction," and "The Wretched." The bands DVSR, Northlane, Crystal Lake, 3TEETH, The Acacia Strain, Vildhjarta, Aversions Crown Reflections, Carnifex, and "Conan" use this tuning as well. Triumphant Return uses a variation of this tuning.
Two and one half steps down from standard Drop A. Used by Oceano and Currents.
Three full steps down from standard Drop A. A variation of this tuning is used on Northlane's Alien album
Three and one half steps down from standard Drop A. Used by Black Tongue.
Four full steps down from standard Drop A.
Four and one half steps down from standard Drop A.
Five full steps down from standard Drop A. Six full steps down from a baritone Drop B guitar
Five and one half steps down from standard Drop A.
Six full steps down from standard Drop A.
. Used by American deathcore band Anzu.

Eight-string

A continuation of the 7-string, adding another string a perfect fourth lower than the low B of the seven-string guitar. The eight string guitars additional low F string is just a whole step up from a bass guitars low E string.
Standard eight-string tuning. Used by Scar Symmetry on the song "The Three-Dimensional Shadow" from the album Holographic Universe and "Mechanical Soul Cybernetics" from the album Dark Matter Dimensions, Deftones, Periphery, The Acacia Strain, Volumes, Fear Factory on "Mechanize", "Metallic Division", "God Eater" and "Soul Hacker" and by Devil You Know on some songs.

Lower

Half a step down from standard tuning. Used famously by Meshuggah, as well as After The Burial and Carnifex on some songs.
One full step down from standard tuning. Used by Meshuggah and Korn on their "Untitled" album and on songs "Illuminati" and "Way Too Far" from their The Path of Totality album.
One and a half steps down from standard tuning. Used by Meshuggah on "Nebulous" and Dissipate on their Tectonics EP.
Two full steps down from standard tuning.
Two and a half steps down from standard tuning
Three and one half steps down from standard tuning.

Higher

Standard seven string tuning with a 'high a' Used by Rusty Cooley.
Regular tuning which extends range a half step higher.

Dropped

A continuation of the eight-string guitar, adding a string lower or higher.
Used by American deathcore band Anzu.

Ten-string

A continuation of the nine string, adding another lower string to the standard or high A tuning.
On table steel guitar and pedal steel guitar, the most common tunings are the extended-chord C6 tuning and E9 tuning, sometimes known as the Texas and Nashville tunings respectively. On a multiple-neck instrument, the near neck will normally be some form of C6, and the next closest neck E9.
Necks with 12 or more strings can be used with universal tunings which combine the features of C6 and E9. On a 12 string pedal steel guitar, all 12 strings are tuned and played individually, not as 6 double courses as on the 12 string guitar.
On lap steel guitar there is often only one six-string neck. C6 tuning is popular for these instruments, as are open G, E6, and E7 tuning.

Renaissance lute

This tuning may also be used with a capo at the third fret to match the common lute pitch: G-c-f-a-d'-g'. This tuning also matches standard vihuela tuning and is often employed in classical guitar transcriptions of music written for those instruments, such as, for instance, "La Canción Del Emperador" and "Diferencias Sobre Guardame Las Vacas" by Renaissance composer Luis de Narváez.