Hello to GMC guitar players, this piece is in a blues funky style. It is based on a normal blues chord progression( 1 4 5 ). In this case it is A D E.
The scale is A minor and also A pentatonic with the blue note ( d# ). This piece is also a good damping exercise because I use alot of it, especially on the bass strings. You can improvise on the backing with those scales.
You can't go wrong so good luck! And hope you enjoy it :)
Ben N