Formed at the dawn of the progressive rock era in 1969, Gentle Giant melded hard rock and classical music, with an almost medieval approach to singing. "Three Friends"' was their third album and is considered one of the great concept albums of the 1970s. The songs tell the story of three friends who lead very different lives after leaving school. It's a simple idea but the music is often complex and sophisticated. It will delight discerning fans of classic progressive rock.