Show HN: Calculator Music – play songs with number keys in the browser https://ift.tt/N0n1PZQ

Show HN: Calculator Music – play songs with number keys in the browser I built Calculator Music, a small browser toy for playing songs on a calculator with number notes, autoplay, and practice mode. It is here: https://ift.tt/9CRblwU No signup is required. I would love feedback on whether the practice mode makes sense and which songs sound recognizable. May 23, 2026 at 06:33AM