Conversation so far:
what is Psychedila and krautrock?
psychedelic rock-styled.
did they put out albums with this sound?
Froese experimented with musical ideas, playing smaller gigs with a variety of musicians.
were they well-received?
one grouping also had the distinction of being invited to play for the surrealist painter Salvador Dali.
Did they win awards for their music?
using the technology of the time rather than the synthesized music they later became famous for.

Question: How many were in the band making this music?
Self-contained rewrite: How many were in the Tangerine Dream band making psychedelia and krautrock music?