It introduced the group's virtuoso approach to jazz, funk, soul, blues and hard rock music.

[2] In 2014 it was re-released on CD, compiled with 8th Street Nites and Another Fine Mess, by BGO Records.

[3] The original album cover shows a photograph of the back door of the Lion Inn at Blakey Ridge in the North York Moors.

“Slivadiv” was sampled by Beastie Boys as the intro to “Stand Together” on their 1992 album Check Your Head.

All music is composed by Ron Aspery and Colin HodgkinsonAdapted from the Back Door liner notes.