It’s decent, but it could be really useful if it was updated like the iPad version

This app is a really great tool to help learn about western chord progressions. However, it would be great if the creator updated it like the iPad version to greatly increase functionality. I hope he sees this message and updates the app because I bought it when I watched the tutorial for version 6.0 and I was much more impressed with said version’s usability.

Jolfrey about Mapping Tonal Harmony Pro, v5.1