Blues Out is recorded December 28, 1956 and is track 5 on the CDalbum  Modern art by Art Pepper Quartet from 1988.

This 1988 reissue is slightly altered from the original Omega release. It has five cuts added from Omega sessions. [source]

Lineup:
Art Pepper – Alto Saxophone
Ben Tucker – Bass
Chuck Flores – Drums
Russ Freemann – Piano