Les Yper-Sound
Song title	Psyché Rock	Album title
Label	Fontana	Cat. #	460 233
Recorded	1968	Released	1968
Style		Format	EP
Time	2:53	Composer	Henry / Colombier
Other tracks: 'Too Fortiche', 'Teen Tonic', 'Jericho Jerk'. All pieces from 'Messe Pour Le Temps Present' by Pierre Henry and Michel Colombier, and almost released as the same time.