great learning/composing app

i really like this app, great for learning the logic of harmonic progressions, composing, the best out there. elegant interface, i really appreciate the jazz voicings in addition to traditional harmonies and movements. i do wish more bars available for composing (i can only get 8, but perhaps im missing something). would be cool to add guitar fretboard/voicings. very functional, ability to do all inversions, lock bass lines, instant transposition. all around great app for musicians.

deleuze1 about Mapping Tonal Harmony Pro