Piano Scales on the  I  IV  V ... Your cheatsheet to jam! We currently offer our initial images (JamSheets) of 4 bluesy piano scales (and * blue notes for the major / minor scales as well) --- tabbed out on a single page for a view of all 4 scales across the  I  IV  V, 12 Bar Blues progression for each of the natural keys, A-G. These loaded images provide an interesting mix of piano scales:  major / major pentatonic / minor pentatonic / harmonic minor. All natural keys A-G included for $.99