Glass Prism was a psychedelic group out of Pennsylvania.They released two albums on RCA, 1969's "Poe Through The Glass Prism" and 1970's "On Joy and Sorrow". Their second album has a dark and heavy vibe, really great guitar work sometimes with fuzzy sounds, more on the sorrow side of life than on the joy side. " Your joy is your sorrow unmasked". They were one of the originators of progressive concept-based rock, and have many loyal fans to this day. This debut release sets the poetry of Edgar Allan Poe to grandiose psychedelic arrangements -- the concept's more than a bit suspect, of course, but there's no denying the album's ambition or its execution. Both Tom Varano and Augie Christiano are imaginative composers skilled at folding classical and jazz precepts into the hard rock idiom, and their nuanced arrangements (dominated by chiaroscuro shades of funereal organ) artfully convey the melancholy and macabre at the heart of Poe's verse. Equally impressive are Glass Prism's four-part harmonies, employed most effectively on songs like "El Dorado."