You can choose tonality, scale or chord type, octave to use, number of octaves, note colors with different colors pickers, and then play the scale or chord, with several piano sounds.
The Practice Window contains a metronome, a BPM finder, and a "favorites player" for practicing.
The circle window allows you to navigate through the circle of fifth while seeing the main window, computing chords, scales or your custom choice.

Octaves :
Sounds :
Colors pickers :

Sharps and Flats buttons change musical notation when harmonically possible

Chords rotation or close voicing :

Display as a piano or a Mallet instrument :






