Trombone Trainer
Slide position practice
About
This app helps brass players improve their trombone slide technique through interactive exercises and real-time scoring. It offers a slide position chart, ear transcription, and built-in practice libraries. Track your progress with detailed statistics and unlockable badges.
What's New in Trombone Trainer
3.0
October 27, 2026
Trombone Trainer now works in portrait: turn your phone upright for four lines of music, with the slide appearing only while you play, and the arm slide works upright too. Portrait sets the F attachment aside and scores the plain tenor slide; turn back to landscape to use it. Standard now also comes as a yearly plan that starts with a free week, alongside the one-time unlock. And sharps and flats no longer crowd the notes beside them.
MoreSubscriptions & In-App Purchases
Standard — Yearly
Every song, import & share. Renews yearly.
Developer apps
FAQ
What is Trombone Trainer?
Trombone Trainer is an educational app designed to help brass players practice and improve their trombone slide positions. It offers interactive exercises, real-time feedback on slide accuracy, and tools for learning music by ear.
How does Trombone Trainer score slide positions?
The app scores your trombone slide positions in real time as each note sounds. It highlights the correct position and rewards mistake-free passes with its clean-run detector.
Can Trombone Trainer help me learn to read music?
Yes, Trombone Trainer displays music on a bass-clef staff and allows you to see note names in letters, German, or solfège. It helps build the link between sheet music, sound, and slide placement.
What practice content is included in Trombone Trainer?
The free version includes trombone scale libraries for immediate practice. Upgrading unlocks more songs, libraries, and the ability to import and export content.
Does Trombone Trainer offer progress tracking?
Yes, Trombone Trainer tracks your progress with daily, weekly, and monthly trends, streaks, and unlockable badges. A detailed stats screen shows accuracy over time for each song.
What devices is Trombone Trainer available on?
Trombone Trainer is available on iPhone, iPad, and iPod, indicated by its supported devices list.
How often is Trombone Trainer updated?
The app was last updated on September 11, 2026, suggesting a recent update. Version 1.7.0 was released at that time.
Is Trombone Trainer suitable for beginners?
Yes, Trombone Trainer is built for both beginners learning slide positions and advancing players. It provides a focused and measurable practice experience for all levels.
