Harmony Practice can help to understand better the four-part harmony.

Harmony Practice is a simple application...important feature of Harmony Practice is the possibility...with its description. Harmony Practice 

Ultimate Scale Mastery - Learn What Fits Into What & Where / Everywhere!

and arpeggios through a harmony relationship chart. Matching...the primary scale. Practice and break...ready to start practicing. The price 

Essential workshop for musicians of all styles, instruments and playing levels

backing tracks, improvisation practice or rapid composition...on a variety of harmony tools to interpret