Forty years since Martin Hannett first used synths and electronic sound effects in production work on Joy Division's Unknown Pleasures this album looks at 34 tracks of electronic and synth music that Hannett had compiled in the the mid 70s to early 80s whilst exchanging tapes by post with electronic music pioneer Delia Derbyshire. The compiled work of tracks from the two electronic music geniuses was to have been released by Hannett but was shelved in the early 80s. Here it is as he put it together for the planned album.