This LP was a reissue of what had been a 10″ record – Gerry Mulligan And His Ten-Tette – with two tracks from Gene Norman Presents The Gerry Mulligan Quartet added. Just as labels created bonus tracks when reissuing LPs on CD, these were bonus tracks added when the 10″ became a 12″ LP.

The sessions were held January 29th, January 31st, and May 7th in Los Angeles. The quartet includes Chet Baker, Carson Smith and Larry Bunker. The Tentette includes Chet Baker, Pete Candoli, Bob Enevoldsen, John Graas, Ray Siegal, Bud Shank, Don Davidson, Joe Mondragon and Chico Hamilton or Larry Bunker (in two different sessions).

My copy, via Cheap Thrills in Montreal QC, is actually a Canadian pressing of a 70s reissue as part of the Quintessence Jazz Series (a budget label from the late 70s – part of the Pickwick International family).