
SEM BM
Byzantine-chant learning games
Opens the live app.
Open live app ↗SEM BM ports a legacy FileMaker music curriculum into a deployable web app for a school of ecclesiastic music. It implements nine distinct seeded-deterministic game mechanics (sequence-order, link-match, interval/logical, scale random-walk, a timed Tetris-style mode, memory, maze, guess, reading) across 4 chapters and 29 exercises, all built on Byzantine 7-note scale arithmetic and a Web Audio runtime synthesizer (sine oscillators with an envelope), so no audio files are shipped. The backend is Supabase Postgres with full RLS, Auth (email + Google), and Storage; the frontend adds complete Arabic RTL i18n, an accessibility baseline, and guest-vs-authenticated progress merging. ~68 TS/TSX files (~9,900 LOC) over 12 SQL migrations.
- Next.js 15
- React 19
- TypeScript
- Tailwind CSS v4
- Supabase
- Web Audio API
- Vercel
- Exercises
- 29
- Game mechanics
- 9
- Languages
- EN + Arabic (RTL)
- Source
- 68 files · ~9,900 LOC