If I recall correctly here are few other progressive rock fans besides me and some of you might have not heard the album mentioned above so...
Wigwam was/is a legendary Finnish band founded in the late '60s and while they had many different line-ups and albums of many styles I'd like to introduce their the most progressive period masterpiece. The band at the time comprised of
from left:
Ronnie Österberg: drums
Jukka Gustavson: vocals, organ, piano, synth
Jim Pembroke: vocals, piano
Pekka Pohjola: bass, violin
A virtuoso organist/composer and bassist/composer, an eccentric english singer/songwriter and an drummer who kept the bands feet on the ground. "Being" was a concept album mainly composed by Jukka Gustavson and while it was misunderstood at some corners being a left-wing album it critisised all politics and religion. It was definitely "in" for an artist to be a left-winger at the time in Finland and some of the lyrics by Gustavson were even censored by the left-wing record company.
Crisader (Jukka Gustavson)
Planetist (Pekka Pohjola)
Prophet (Jukka Gustavson)/Marvelry Skimmer (Jim Pembroke)
More on Wigwam:
http://wigwam.stc.cx/beginners.htm