• meloodi — a browser step sequencer with MIDI export, multi-track support, tap tempo, and scale/mode-aware note placement so you can’t easily play “wrong” notes.
• Harmonix — an interactive music theory explorer: chords, scales, circle of fifths, and progressions, all clickable/audible.
• NextChord — generates chord progressions based on mood (happy, sad, tense, epic, dreamy, dark), scale and key — rule-based, no AI — and shows them on a piano roll + staff notation.
