Sifon
active from year 1979
Melodical hardrock from Pilsen. In 2017 splits in two, the drummer continuing with new musicians under the name Sifon, the rest using the "new" name Sifon Original.
Members:
Bohumil Sluka (1979-1990)
Jiri Mily "Mikes" (1980-1981)
Miroslav Zelenka (1981-1990)
Jiri Vebr (1981-2017) , drums, vocal
Michal Vanek (since 1981) , keyboards, vocal
Zdenek Jakubec (1983-1988)
Vaclav Selmat (since 1987) , guitars, vocal
Daniel Dobias (since 1990) , guitars, vocal
Roman Hejny (since 1990) , bass guitar, background vocal
Discography:
100 hrichu , Avik 1991
Soudnej den , 1993
Best Of Sifon , 2003 , 
Cas , AVIK 2004
SP / EP:
Vizaz / Nejsi na kolenou ( Visage ) ( Titanic ) , Supraphon 1988