Harmony Tensions app for iPhone and iPad

Practice music with our selected range of songs, and also choose the speed at which you want to practice.
Harmony Tensions also uses the circle of fifths and enharmonic patterns to organise modes with intervals as related to the tonic to help make harmony at a glance. By spinning the circle of fifths, keys conveniently shift. This way, the information to know how to improvise while rooted in one key is available at a glance.
The in-app purchase includes an ebook, which will help you understand the harmony wheel on a deeper level and use the app to its full extent.