Learn to play Horn with the Best App

Learn to play the Horn

Welcome to the one and only Horn app you’ll ever need! By downloading it, you’ll be able to not only to practice professionally and become a better French horn player but without having to pay a thing! Do you want to surpass Georges Barboteu’s abilities? Do you want to be the best there is without having to leave the cozy spot of your couch and to pay for private lessons? Download our app, grab your French horn, and let your journey to professionalism begin!


Campaigns & Challenges

Up your level in the Horn Campaign and prove that you have what it takes to raise from an underground horn player to a legendary musician.


Interactive Feedback

With our unique and innovative instant feedback feature you can improve your horn skills on the go.


Large Collection of Music

Over 200 horn songs in our database for you to practice. All available in your pocket.

levels for hornMade For Everybody



Learn the basics

Start out slow

Push your way through the campaign

Learn from your mistakes



Try different techniques

Speed up your tempo

Challenge your friends

Choose from your favourite songs



Compete versus the world

Try something new

Push yourself outside your comfort zone

play modes in horn tonestro appPlay Modes

horn app for mobilephones


With over 125 levels the Tonestro horn campaign will help you learn new techniques and push your skills to your limits.


Every week there will be a new challenge. Compete versus people from all over the world. Become the best horn player there is!


Nothing better than playing and practicing with your friends. Now you will have this opportunity. Invite your friends and compete with each other.

testimonials for the horn appWhat Do People Say?

Do you want to see how the magic is done? We have made a blog post on how our signal processing and algorithm work while you’re rocking the clarinet!

Available next week.

horn news blog
horn app - mockups

The easy and fun way to master the horn.

tonestro for iOS and Android.

activities in the tonestro horn app