Iron Butterfly recorded their biggest & most famous Tune in May 68

and it became known, ever after as 'In A Gadda Da Vida'

This was because the Engineer wrote that as the title, on the Master Tape Box, when it was recorded.

Thing is, as was the want at the time, EVERYBODY was out their face, on various substances, and when the Engineer, asked Song writer and Band member, Doug Ingle, what the track was, He misheard His drug induced drawl of an answer.

The Song was actually called - 'In the Garden of Eden'  - the band of course thought it was hilarious and changed the planned name of the Album to it. As with Hendrix, Lead Vocalist and organist Ingle, often sang it wrong, intentionally on Stage.