توضیحات:

Within this application you can visualize all chords and scales on your fretboard, 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, lefty fretboard view and arpeggio listening mode.
This application implements functionalities of my well known music site http://chords.jpglomot.com/ and is declined for keyboard, guitar, bass and ukulele. All of them are free to download and use without extra charge.