Piano Chords & Scales (free) 3.0.7

This android application lists
- 1692 chords schemas on 64 different chords
- 957 x 12 scales schemas
Within this application you can visualize all chords and scales on your keyboard, display and listen corresponding notes structure.
Use the 'Finder' tool to identify all chords or scales matching a selected notes set.
The options menu lets you select night view mode and arpeggio listening mode.
This application implements functionalities of my well known music site and is declined for keyboard, guitar and ukulele. All of them are free to download and use without extra charge.