PERCEPTION were founded as a MAGMA off-shoot quartet by Jeff (Yochk'o) SEFFER (saxophones, clarinets), Didier LEVALLET (bass), Siegfried KESSELER (piano, flute), and Jean-My TRUONG (drums). During only two years (from 1971 until 1973) they had recorded 'lively' and released three albums (one of them was a compilation under the name of 'Perception & Friends'). The two key persons Yochk'o and Jean-My later formed another off-shoot ZAO with a MAGMA fragment François CAHEN
Recorded on Jan 9, 1971 on Futura Records.

Didier Levallet, bass
Yochk'o Seffer, bass clarinet, soprano saxophone, tenor saxophone
Jean-My Truong, drums
Siegfried Kessler, piano, flute

http://www.progarchives.com/artist.asp?id=7076