I asked Claude for a score-following animation of Chopin's Barcarolle, Op. 60 — it built the whole thing end to end

Claude successfully generated a score-following video of Chopin's Barcarolle, Op. 60 from a single request. Without any MIDI, MusicXML, or score scans provided, Claude produced the musical notation, timing, note-by-note highlighting, and audio. The most surprising aspect was the perfect synchronization of the highlighting with the audio, even through the complex 12/8 time signature and intricate ornamentation of the Barcarolle.

Unlike earlier AI music generation, Claude not only created the audio but also generated the score, timing, and note-by-note highlighting from a single text prompt.