Psychedelic trance
however some psytrance songs can also reach 190BPM, 200bpm, 210bpm and even 300bpm. It uses a very special bass beat that pounds the entire duration of the song and covers the bass with  rhythms borrowed from funk, techno, dance, acid house, eurodance and trance using drums and other instruments. The different leads, rhythms and beats generally change every eight bars. Layering is a technique used to create effect in psychedelic trance, with new musical ideas being added at regular intervals, often every four to eight bars. New layers will continue to be added until a climax is reached, and then the song will break down and start a new rhythmic pattern over the constant bass line. Psychedelic trance tracks tend to be six to ten minutes long. This includes a developed and atmospheric introduction, and a breakdown in the middle of the track of around 30 seconds to over a minute.