congas, bongos Armando Peraza
double bass, congas Al McKibbon
flute Jerome Richardson
piano Eddie Cano
piano Manuel Duran
piano, maracas Richard Wyands
vibraphone, leader Cal Tjader
1955 US Fantasy Records 1st burgundy colored label variation Mono edition. Released with Cal Tjader's Modern Mambo Quintet branded near the bottom edge of the front cover, with HOT RHYTHM written underneath the release title on the front cover, and with a vinyl weight of approx. 180 grams.
Subsequent Repressing's will have Cal Tjader's Modern Mambo Quintet branded near the top edge of the front covers, and will not include HOT RHYTHM written underneath the release title on the front covers.

This release was recorded in separate sessions, and with different musicians.

FYI: This Burgundy label variation was discontinued 1955.
Matrix / Runout: V-5998-1598 (Side 1, etched)
Matrix / Runout: V-5998-1599 (Side 2, etched)