Play a 39-key harmonium with your mouse, touchscreen or keyboard. Switch between Western and Sargam note labels, load a written score, or let a compatible AI agent play the same visible instrument.
Created by Mamini anuradha chakra; Bikash Ranjan Baral; Mayank Ranjan Baral
Built with ChatGPT · Development model unspecified; Codex GPT-5.6 used to test agent play
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Source checked September 22, 2026Original creators explicitly credit ChatGPT with research and building the first working version. Codex GPT-5.6 is separately credited for testing agent performance, not established as the development model.
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