Trebella is a practice companion for classical musicians. Snap a photo of your sheet music, and it builds a structured practice session tailored to the piece you're working on — then listens and gives you real-time feedback as you play.
Designed for intermediate to advanced players. Works alongside your teacher, not instead of one.
Three steps to a more focused practice session.
Upload a PDF or take a photo of the sheet music you're working on. Trebella reads it and understands the structure, key, time signature, and technical demands.
Choose how long you want to practice — 10 minutes, 30, or an hour. Trebella generates a session that warms you up with the right exercises and builds toward playing a section of your piece.
As you practice, Trebella listens through your microphone and gives you helpful, specific feedback — like a patient practice partner who's always paying attention.
Trebella understands what makes practice actually productive.
Modern OCR turns your printed or handwritten music into a format Trebella can analyze. No need to search a catalog — just use whatever your teacher assigned.
Practice plans adjust as you play. If something is clicking, Trebella moves on. If a passage needs more work, it spends more time there.
Trebella uses a custom audio model to hear what you're playing and give feedback on intonation, rhythm, dynamics, and more — in the moment, not after the fact.
Every session starts with exercises that target the specific technical skills your piece requires — scales, arpeggios, bowing patterns, or fingering drills tailored to the music.
Trebella isn't trying to replace your teacher. It helps you make the most of your practice time between lessons, so you show up more prepared.
Piano, violin, cello, flute, clarinet, trumpet — Trebella's audio model is trained across the full range of classical instruments.
Start free and upgrade when you're ready. No contracts, cancel anytime.
$14/mo
$39/mo
Whether you're preparing for an audition, working through a new etude, or just trying to make the most of your 30 minutes before dinner — Trebella is here to help.