Introducing Harmonica Key!
Harmonica Key is a music reference app for harmonica players. The app provides a simple user interface for looking up common harmonica tunings, as well as overlay information about chords and scales.
Users can choose to display information for different key scales and chords as well as change the root key of the harmonica.
In addition, reference sounds are played when a note is touched help players get the correct tone for bends and overblow notes.
Get it here.