In the 1970’s JBL put out an LP intended to be used to evaluate the sound of their new L100 loudspeaker. The LP contains tracks from commercially released albums, one of which is "Donovan’s Colors" from Van Dyke Parks’ Song Cycle album. The recording contains many different instruments (including harpsichord), as well as some non-instrument sound effects. The song (and the entire album) is as musically interesting as it is sonically stunning. Song Cycle was Van Dyke’s first project after he finished his work with Brian Wilson on the ill-fated Smile album. Song Cycle is very unique, and many will find it not only odd and strange, but also a little spooky. Parks’ is a very, very smart guy, perhaps a genius.
Speaking of odd, strange, and spooky, for a look at what Smile was going to be (a musical representation and celebration of Manifest Destiny), and why it would have been such a milestone album (beating Sgt. Pepper to the marketplace as was intended), listen to "Fall Breaks And Back To Winter (Woody Woodpecker Symphony)" on the Beach Boys’ Smiley Smile album. Now THAT is what I consider Progressive music. The Beach Boys Progressive?! No, Brian Wilson. Don’t believe it? Go ahead, listen to "FBABTW". It makes Progressive bands sound downright traditional!