How to use?

This tool helps you figure out the scale of a melody based on its notes.
Pressing the keys of the piano will select your notes, marking them in blue. The set of notes you select is used to guess the scale of the melody. This scale could be major (A#M) or minor (Dm). The order of the keys is not taken into account.
You can reset your app with the back keys, or undo the last note you pressed with the undo key.