Android:
- ChordWheelDavidKBD
- Perfect Scales
iOS:
- Nota
- Quintenzirkel
- ScaleMaster
- https://prochords.dk/
Tonhöhen lesen lernen
- https://play.google.com/store/search?q=midimaster
- https://www.androidpit.de/de/android/market/apps/app/com.pokmis.inotetrainer/iNoteTrainer