One of the longest songs to be featured as an album track on the LP of Iron Butterfly’s second album In-A-Gadda-Da-Vida, at 17 minutes it occupied the whole B-side of the record! The song itself was recorded unintentionally when the band sound-checked for studio engineer, Don Casale, in Long Island. When the band heard back what they had recorded they thought it good enough to grace the album!
Buy this song at iTunes or Amazon. The official band site is here.