Opsilon Instruments is now developing instruments with up to 20 Notes! With this particular instrument you will be able to play D-minor / D-major in one instrument. You will have F/F# and C/C# in one. This will greatly expand your harmonic range compared to a regular pentatonic or diatonic instrument, e.g. you will be able to play diminished (C# - E - F#/Gb) and augmented (A - C# - F/Eb) chords, as well as whole step sequences. We can't wait for this one to be finished so we can make a video for you. We still don't have a name for it but we are open for creative suggestions.