Dev Builds 3D Piano-Playing Hands with GPT-6 Astra in Two Hours

Developer LexnLin demonstrated GPT-6 Astra composing a piano melody and building a 3D pianist that plays it, with finger movements precisely matching the notes, all in about two hours.

2026-09-05 ~ 2026-09-06 · 2 related posts

• GPT-6 Astra composes a piano melody and builds a 3D pianist whose fingers hit the notes—in 2 hours — Dimillian · 2026-09-05
• GPT 6 Astra composes piano melody and builds 3D pianist whose fingers hit the notes — in 2 hours — nptacek · 2026-09-06