Hi Product Hunt! 👋 I'm a solo indie developer and musician, and Note Pierce came from a pretty simple idea: I'm already in my browser most of the time. What if some of those little breaks, the moments where I'd normally open another feed or doom scroll could become a few minutes of ear training instead? Ten questions doesn't take very long, but those small sessions can add up. So I built Note Pierce, an ear & rhythm training browser extension that stays close while you're already in your browser. 👂🎶 You can jump into a short drill during a break, or keep it beside you while browsing and practice a little more intentionally. There are six training areas: 🎵 Intervals — recognize melodic and harmonic intervals 🎵 Chords — train chord qualities and more advanced harmony 🎵 Scales — recognize different scale sounds 🎵 Progressions — hear harmonic movement and common functions like V–I 🎵 Inversions — learn how changing the bass note changes what you hear 🥁 Rhythm — read, hear, tap along, and tap rhythms back yourself And I didn't want the experience to stop at simply hearing something and choosing an answer. You can tap rhythms back, compare your timing with the correct answer, explore notes on the built-in piano, replay sounds and choices, build your own drills, and come back to the exact things you're struggling with. Note Pierce also includes: 🧠 Review & Weak Spots — missed items are tracked so you can see exactly where you struggle, then brought back with spaced repetition tailored to your weak spots. 🛠️ Custom Drills — build exercises around exactly what you want to work on 📈 Progress tracking — mastery levels, practice history, recaps, and heatmaps 🏆 160 progressive levels across six training areas 🎨 10 themes + 50+ languages 🔒 Privacy-first — Your practice data stays on your device My goal isn't to turn every free minute into "productivity." Sometimes you should absolutely just take a break. 😅 But when you do feel like practicing, I wanted ear training to be something that's already there easy to open, easy to do for a few minutes, and deep enough to keep exploring when you have more time. You can start free with levels across every module, Review & Weak Spots, progress tracking, and custom drill creation. For early supporters, Note Pierce Pro is $4.99 one time for lifetime access + future updates with code NOTEPIERCE — 50% off through October 31, 2026.

Note Pierce

Ear & rhythm training that lives in your browser

Ear & rhythm training that lives in your browser