Put your macBook on the stand of your piano or keyboard.
Choose a key for the chord you would like to play.
Tap the chord button.
Find out what scale you can play over that chord.
Choose the key and the scale button on the right.
Start practicing and have fun.

- 27 of the most used scales, includes 13 of the most used jazz scales
- Unique colour coded (based on the colours of the rainbow).
- It was never before this clear how to play a scale
- Includes the Circle of fifths for choosing your desired key
- Includes chord and scale notation
- What scale on what chord at a glance