Posing more riddles than the average sphinx, with its decipherable answers pointing somewhere dark, Song Cycle was anything but passive. I had already witnessed hippie bands playing with their backs to the hall, so the thought of late '60s musicians being interested in their audience struck me as a concept bordering on revolutionary.

The debut album from songwriter and pianist Van Dyke Parks, Song Cycle first appeared in 1968 on Warner Brothers Records. Its twelve songs led listeners through Joycean wordplay and sound collages to reveal messages of dissent and personal...