Guitar phím lõm
The đàn lục huyền cầm, or colloquially đàn ghi-ta phím lõm, is a scalloped Vietnamese adaptation of the French guitar.
The guitar, or ghi-ta, was adopted by Vietnamese musicians during the 19th Century. However, in order to adapt a western guitar to the deep pressing on the strings necessary for Vietnamese music the fingerboard - the wood of the neck between the frets - was scooped out to ease the pressing. This carving out of the fingerboard is what gives the distinctive scalloped appearance to the six-string đàn lục huyền cầm. This form of guitar is commonly used in cải lương or "Southern Reformed Theater." In the modern day, it has been included in Chầu văn music. Traditionally, acoustic guitars are used, but electric guitars are increasingly popular in the modern day.
Some guitarist will use Artificial harmonics in order to imitate the sound of the Đàn bầu.
