Worked Described
PianoFun: a browser piano game with MIDI keyboard support
Built for the author's daughter after seeing someone vibe-code a similar app.
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Credits
- HN submitter victorbuilds Source ↗
Earliest dated source:
The full story
The author's daughter is learning piano. Inspired by someone on X who did the same, they plugged their ten-year-old Casio AP-450 into a computer, opened Claude Code, and had a falling-note learning game working in minutes. Their daughter became the product manager: she asked for a beat toggle, noticed long notes vanished too fast, and spotted visual overlaps. It's plain HTML, CSS and JavaScript (just a USB cable, Chrome and index.html), released under GPL-3.0.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Hacker News: Show HN: PianoFun – Browser piano learning game with MIDI (vanilla JavaScript)HN submitter: victorbuildsPosted
The Show HN post with the story and repository link.