Iron Butterfly – Evolution: The Best Of Iron Butterfly (LP Vinyl)

Long before extended improvisation had a genre name, Iron Butterfly was pushing rock compositions past the 17-minute mark and rattling venue walls with organ-driven heaviness. "In-A-Gadda-Da-Vida" alone secured their place in the psychedelic canon, but this collection serves as a reminder that the band's catalog runs deeper than that one monolithic track.