Once again we start with the blues but this time the 12-measure blues form can be played with a great many harmonic variations. One very common basic version is the following pattern, using mainly dominant chords entitled:
BAGS GROOVE (Jazz Blues in Bb)
“Bags Groove” is a jazz composition by Milt Jackson and was first recorded by the Milt Jackson Quintet on Apr. 7, 1952 for Blue Note Records.
Click on link to download PDF. Bags Groove in Bb
Bags Groove Playalong