Visualize how to play a piano chord on the virtual keyboard. Select the chord you want (From Cm to Bb7(b5)add13...all are here !) et voil....
You can also listen to the selected chord and see its scoring
You can also "draw" the notes on the virtual keyboard, or play your MIDI keyboard, it will tell you what chord it is.
A great utility for jazz pianists !
Read The publisher description in: French