ArtQuiz Portal: a collection of cultural educational projects: databases of music, paintings and literature; quizes; interactive timelines; association projects. Quizes have many difficulty levels and can be interesting both for starters and professionals. Quizes are designed to teach and to motivate in developing knowledge of culture.
Chord sequence analyser system. The system analyses the series of chords, determines the key, shows where the key changes, also shows some other possible keys, shows the notes of the chord, common notes of adjacent chords. Also it lets you play your chord sequence in MIDI.
Also the system includes some most known Jazz standards and can analyse them for you.