Mapping Tonal Harmony For Ipad

Hi,

I am getting ready to launch a new tool for iPad to learn harmony by mapping tonal functions.

http://mdecks.com/mapharmony.html

It is going to be part of a seven workbook collection.

The volumes in the Mapping Tonal Harmony collection have been envisioned as auxiliary material in the study of Tonal Harmony. The main objective of these books is to provide the student, teachers, composers and/or songwriters with a tool that will aid them in hearing, analyzing, foreseeing and composing harmonic progressions without struggle, in all keys alike.

Since I know all you guys are interested in topics like this, I thought was a good idea to share this new concept and see what you might think.

Thanks for reading and any feedback would be greatly appreciated.