Learning course on chord progressions for beginner and intermediate.
* This app should allow access to media folder to save your data.

Contents
- Cadence
- Diatonic & Non-diatonic Progressions
- Modal Interchange
- Midi Examples
- etc

How To Use
- Adding Favorite : Long Click the name of progressions in example page.
- Modifying Favorite : Long Click the name in favorite page.