alto saxophone Charlie Parker
tracks a bass Red Callender
tracks b bass Tommy Potter
tracks a drums Harold "Doc" West
tracks b drums Max Roach
tracks b piano Duke Jordan
tracks a piano Erroll Garner
tracks a supervised by Ross Russell
tracks b trombone J.J. Johnson
tracks b trumpet Miles Davis
Quasimado (printed on label) = misspelling of Quasimodo.

Charlie Parker Quartet :
Cool Blues recorded at C.P. MacGregor Studio, Hollywood, CA - Commercial for Dial : February 19, 1947.

Charlie Parker Sextet :
Quasimado recorded at WOR Studio, New York City, NY - Commercial for Dial : December 17, 1947.

See:
http://www.plosin.com/milesahead/BirdSessions.aspx?s=470219
http://www.plosin.com/milesahead/BirdSessions.aspx?s=471217
http://bird.parkerslegacy.com/dialspX2.html#
Matrix / Runout: D-1054-C-D (Side A Label)
Matrix / Runout: D-1152 (Side B Label)
Matrix / Runout: D-1054-CC G (Side A runout etched)
Matrix / Runout: D-1152-B G (Side B runout etched)