A style of trance music utilising the acid sound. The trademark sound of "acid" is produced with a Roland TB-303 by playing a sequenced melody while altering the instrument's filter cutoff frequency, resonance, envelope modulation, and accent controls. This real-time tone adjustment was not part of the instrument's original intended operation.
A descendant of acid house, since the genre of trance had not yet been invented during the advent of acid house (or acidhouse).
