Automatic song generation, flexible song editing. - SONG COMPOSITION (verse1, verse2, chorus,...) - SONG PROPERTIES (key, tonality, time signature, tempo, genre...) - CHORD PROGRESSION (automatic chord progression) - MELODY (upward, downward, horizontal, u-shaped, n-shaped, wavy, and free editing) - LYRICS - ACCOMPANIMENT (various keyboards, bass, and drums pattern) - INTER-APP AUDIO (using instrument app as your sound, recording & mixing your song with DAW app)