I made this app to help you easily understand and find information about music theory. Use the included tools and exercises to improve your ear training music theory skills and sight-reading.

Please contact me if you find any problems with the app or if you want to share your feedback!

Theory
Intervals chords note values rests circle of fifths scales octaves and various notation symbols (dynamics articulation etc.)

Tools
Chord builder - generate chords and listen to examples
Scale builder - generate scales and listen to examples
Mode builder - generate modes and listen to examples
Practice Helper (paid feature) - use this tool to randomize scales keys and chords. It can help you during your practice sessions when you ask yourself "what should I practice next?"

Exercises
Listening exercises - intervals (melodic and harmonic) chords chord inversions chord progressions (major)
Reading exercises - note reading/sight reading interval reading chord reading key signatures scale formulas
Mental practice - chord/scale degrees

The app is free and contains no ads but some features requires an active subscription.

Available in the following languages: English Italian Russian German and Swedish