Sa–Sm •
Saga: Canadian neo-prog band •
Samla Mammas Manna: A RIO band with folk influences •
SBB •
Klaus Schulze:
electronic music pioneer, composer, and musician. Was a member of the
Krautrock bands
Tangerine Dream,
Ash Ra Tempel, and
The Cosmic Jokers before launching a solo career consisting of more than 60 albums. •
Paul Schutze •
Secret Machines •
Semiramis •
Seventh Wave •
Shub-Niggurath: A French Zeuhl band •
Sigur Ros: Icelandic post-rock band •
Sikth: British progressive metal and djent band •
Peter Sinfield •
Skin Alley: Progressive band from the late 1960s–early 1970s whose work has influences from
blues rock,
jazz fusion, and
art rock •
Slapp Happy: A late-1970s offshoot of
Henry Cow •
Sleepytime Gorilla Museum: A Californian RIO band •
Smak: Serbian and Yugoslav band
Sn–Sz •
Soft Heap •
Soft Machine: Canterbury scene band initially playing psychedelic rock, later moving into experimental jazz rock and
free jazz •
Solaris •
Solstice •
Sparks: American art rock duo who played glam rock, synth-pop and disco •
Spirit: A psychedelic band that was a major influence on early progressive rock •
Split Enz: Started out as a prog band, but moved to
new wave starting in 1979 •
Spock's Beard: 1990s United States symphonic prog band •
Chris Squire: English musician and bassist of Yes •
Starcastle: A progressive band from the US similar to Yes •
Stackridge: English progressive rock, pop, and folk band who have been described as precursors of
Britpop •
Al Stewart •
Stormy Six: A politically active 1970s Italian band who later aligned with RIO •
Strawbs: British 1970s symphonic prog band with strong folk roots •
Stick Men •
Still: A late-1990s version of Echolyn •
Stolen Babies •
Stranglers: Formed in 1974 and heavily influenced by prog rock though generally regarded as a punk rock act •
Styx: A US band who played extended compositions and classical adaptations with a hard rock edge, then played arena rock •
Supertramp •
Survival: Dutch
progressive/symphonic rock band •
Syd Arthur: A modern band in the Canterbury style •
Sylvan •
Symphony X •
System of a Down: American-Armenian
nu metal band that has also played
progressive metal ==T==