Online music theory tools
ToneGym tools will help you to understand various components of musical theory. Learn in depth how chords and scales are constructed, create progressions according to principles of voice leading, use the online piano recorder to play, record and share compositions with friends.
Progression generator
The progression generator allows you to build and play chord progressions. The online generator will play chord progression according to voice-leading principles.
Chord player
The online chord player allows you to play common chords in harmonic and melodic play modes using different roots to learn their DNA and inversions.
Circle of fifths
The circle of fifths is an online interactive map that describes the relationships among the 12 tonics of the chromatic scale. Change tonic, mode, and layout to discover the relations, or mathematical patterns between musical notes, chords, and scales.
Scale analyser
The online scale analyser allows you to play common scales in ascending and descending play modes using different roots to learn their DNA.
Piano recorder
The piano recorder allows you to play, record and share compositions.