Petrillo-"Hands, Grooves, Fills"?


Junior Member
To anyone with the book......Can you explain what the notations in the rhythm charts (i.e. A-7, G/B, D-9, etc.) mean? They start on page 32. Thanks.


Platinum Member
Can you explain what A-7, G/B, D-9, etc. means?
They are chord symbols. Below I've listed those three chord symbols, their English translations and the notes that belong into each respective chord.

A-7 = A minor seventh (a, c, e and g)
G/B = G major, B on bass (b, d and g)
D-9 = D minor ninth (d, f, a, c and e)

Pat Petrillo

Silver Member

Hope you are enjoying "HGF"!..Keep me informed of your progress..

The chord symbols were put there so that if you wanted to play these tracks with a live rhythm section, they can play the same chords and parts that the band plays on the Play Along MP3 CD. I use HGF when I work with Bass students, so they can learn the Bass line grooves. Just another way to interact and make music!

Have fun!


Junior Member
Thanks guys for explaining those notations. Just wanted to make sure I wasn't missing something.