Dan Shipper demonstrates OpenAI Codex piano teaching app
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Dan Shipper posted a video of a macOS piano teaching application built with OpenAI Codex. The demo displays chord code snippets in a sidebar, a central piano roll highlighting notes such as C and G#, and a virtual keyboard that renders note sequences and chord progressions from natural language prompts in real time. The prompts and working code are published at piano.every.to, and multiple accounts on X shared the video.
ORIGINAL POST
#1286Dan Shipper 📧@DANSHIPPER
#1286Dan Shipper 📧@DANSHIPPERcodex teaches me to play piano:
11:12 AM · May 15, 2026 · 140.1K Views
get the prompts + code to do this yourself @every: https://piano.every.to
Dan Shipper 📧@danshippercodex teaches me to play piano:
11:12 AM · May 15, 2026 · 140.1K Views
3:40 PM · May 15, 2026 · 2.5K Views