Piano-to-MIDI with Transkun, visualized in three.js using Gemini in Google Antigravity

alexanderchen · x · 2026-10-31

Alexander Chen shared a music-visualization workflow: transcribe raw piano audio to MIDI with the open-source Transkun, track hand positions, and visualize everything in three.js using Gemini inside Google Antigravity — capturing the feeling of "floating downward infinitely through space." An interactive prototype lets you scrub through time and explore.

Transkun is a neural semi-CRF piano transcription system (ISMIR 2024 / NeurIPS 2021 papers), installable via pip, with 500 stars on GitHub.

Related event: Developer Uses Gemini to Turn Piano Practice Into 3D Visualization(4 posts)→

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