Perhaps "scale" should be its own block. The first 7 modes listed are in fact modes of the same scale so the name is fitting. But "Melodic" and "Harmonic" are t

Perhaps "scale" should be its own block. The first 7 modes listed are in fact modes of the same scale so the name is fitting. But "Melodic" and "Harmonic" are their own scales, each with a corresponding set of 7 modes. It would be cool to select modes of those scales as well. For example Phrygian Dominant (mode of Harmonic minor) is very common in a lot of metal music, some classical, Eastern European, etc. As an aside, the line visual for the arpeggio styles is really cool! It would be neat to select different arpeggios for each chord and see the whole progression drawn out as a line.