Student Pitch - ClefShift

Do you play an instrument in one clef but need to read music written in another? Maybe you're a trumpet player handed a piano score, or a cellist trying to play from a treble clef part. If you've ever spent hours manually rewriting notes from one clef to another, you know how tedious and error-prone that process is.

Meet Mathumitha C., a 9th grader from North Carolina who saw this problem and decided to solve it.

As a musician herself, Mathumitha understood the frustration firsthand. Transposing music between clefs, whether from treble to bass, bass to tenor, or any other combination, is one of those tasks that eats up practice time and trips up even experienced players. Existing tools are clunky, expensive, or just don't work well. She wanted something simple: upload your sheet music, pick a target clef, and get your transposed score.

So she built an app to do exactly that.

Introducing ClefShift, an AI-powered music transposition tool that lets you upload a sheet music PDF, select your target clef (treble, bass, or tenor), and get your music transposed automatically. Clean interface. No fuss. Just the notes you need, in the clef you need them in.

What makes this especially impressive is how Mathumitha approached the build. She didn't just grab the first API she found and call it done. She explored multiple music processing APIs, compared their capabilities, and chose the one that best fit her use case. When her first version had issues, she tested, debugged, and iterated, improving the output with each round. That's a builder thinking through tradeoffs and making decisions.

And she did all of this in just 4 weeks as part of the Flintolabs Foundations cohort. Four weeks from zero to a deployed, working app that solves a real problem for real musicians.

This is what learning by doing looks like. Not memorizing what an API is, but evaluating which one to use. Not reading about AI, but shipping a product powered by it. Not hypothetical problem-solving, but building something you'd actually want to use yourself.

Check out ClefShift and try it with your own sheet music!

🎵 👉🏻 https://v0-music-transposer-app.vercel.app/

Give this student a like if you'd use ClefShift! Drop a comment to let Mathumitha know what instrument you play and how this could help.