Viennese trichord
In music theory, a Viennese trichord, named for the Second Viennese School, is a pitch set with prime form. Its Forte number is 3-5. The sets C–D–G and C–F–G are both examples of Viennese trichords, though they may be voiced in many ways.
According to Henry Martin, "omposers such as Webern... are partial to 016 trichords, given their 'more dissonant' inclusion of ics 1 and 6."
In jazz and popular music, the chord usually has a dominant function, being the third, seventh, and added sixth/thirteenth of a dominant chord with elided root.
