Clef
Startup in .com
spaced repetition for piano over MIDI
- Kind
- Startup
- Country
- Worldwide
- Place
- .com
- Listed since
- 2026
- Website
- https://playclef.com/
- launched
- 2026-08-07
- launch post
- https://news.ycombinator.com/item?id=49210885
- hn score
- 3
- domain created
- 2026-06-25
- Last verified
- 2026-08-07
Sources
- Hacker News, "Show HN" — news.ycombinator.com, read 2026-08-07
