▁to ▁the ▁original ▁language . ▁L AD SP A ▁and ▁D SS I ▁are ▁supported , ▁but ▁V ST ▁support ▁has ▁been ▁removed . ▁ ▁Real - time ▁performance ▁through ▁M ID I ▁was ▁added ▁in ▁the ▁ 1 9 9 0 s . ▁Another ▁addition ▁was ▁the ▁support ▁of ▁F LT K ▁widget s ▁( graph ical ▁interface ▁components ▁with ▁sl iders , ▁kn obs , ▁etc .) ▁for ▁cont rolling ▁real - time ▁audio , ▁and ▁integration ▁of ▁custom ▁graph ical ▁interfaces ▁written ▁in ▁Python . ▁ ▁Cs ound ▁ 6 ▁▁ ▁Cs ound ▁ 6 ▁has ▁been ▁in ▁development ▁since ▁its ▁features ▁were ▁hash ed ▁out ▁at ▁the ▁Cs ound ▁Conference ▁held ▁in ▁ 2 0 1 1 ▁in ▁Han over . ▁Cs ound ▁ 6 ▁was ▁released ▁in ▁July ▁ 2 0 1 3 ▁and ▁is ▁now ▁available ▁on ▁GitHub . ▁Cs ound ▁ 6 ▁is ▁also ▁available ▁for ▁Android . ▁The ▁major ▁new ▁features ▁of ▁Cs ound ▁ 6 ▁include : ▁▁ ▁A ▁b ison / flex ▁based ▁parser ▁for ▁the ▁Cs ound ▁language ▁is ▁now ▁standard . ▁It ▁generates ▁an ▁abstract ▁syntax ▁tree ▁that ▁is ▁accessible ▁via ▁the ▁Cs ound ▁API . ▁The ▁tree ▁can ▁then ▁be ▁compiled ▁to ▁a ▁Cs ound ▁performance ▁runtime ▁using ▁the ▁API . ▁Therefore , ▁after ▁the ▁tree ▁has ▁been ▁compiled , ▁it ▁can ▁be ▁manip ulated ▁by ▁user ▁code ▁before ▁compiling ▁it ▁to ▁a ▁Cs ound ▁performance ▁runtime . ▁Alternatively , ▁the ▁user ▁could ▁create ▁the ▁entire ▁abstract ▁syntax ▁tree ▁from