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.
The chord analyser allows you to play common chords in harmonic and melodic play modes using different roots to learn their DNA and inversions.
The circle of fifths is an 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.