Quarter Tone Ear Training

Welcome to the quarter tone interval ear trainer! This app will help you develop your ear and learn to recognize quarter tone intervals. You may change the settings, or play with the default settings.





Browser Compatability


This app works best on the Firefox browser. With Firefox, each tone is produced with overtones, which makes identification easier when both tones are produced simultaneously. This app is also reported to not work well on Safari browser. If you experience any problems with the tone production, try using Firefox.



Rules and Scoring




Test Settings


You may change the settings of the test below:







Learn More...

Dig deeper into the world of 24-TET with the resources below!

Introduction to Quarter Tones - Quarter Tone Composition In Western music, 12-Tone Equal Temperament, or 12-TET, is the standard for defining where all of the notes lie. The octave is divided in... Composition Software - Quarter Tone Composition Not all music notation software support quarter tone notation and playback. However, there are a few options for composers who wish to co... Introduction to Quarter Tone Composition $24.99 22.99

The purpose of this book is to introduce composers to the world of 24-TET.  Quarter tonality presents new melodic and harmonic possibilities that can bring about previously unexplored textures, colors, and atmospheres to music.

Quarter Tone Technique for Saxophone $29.99

The goal of this technique book is to encourage saxophonists to learn this technique and to encourage composers to write for it. Quarter tonality presents new melodic and harmonic possibilities that can bring previously unexplored textures, colors, and atmospheres to music.



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