Every musician should work on Ear Training (or Aural Training) and Interval Ear Training is a very important element of ear training. To put it very simply, you will learn to recognise the relationship between two notes (by distance), when they are played together or apart!

There are two types of interval listening, harmonic and melodic. In harmonic intervals the notes are played at the same time and in melodic the notes are played one after the other. Easy to remember: Melodic Intervals make melody, Harmonic Intervals make harmony!

Many of you will probably want to understand how the names are found and how to work out the interval note names in every key. For this info you probably want to check out my ebook Practical Music Theory (available from which will explain all the theory related to this.

This app deals specifically with Interval Ear Training, both melodic and harmonic. It will start very easy and gradually get harder as you get more correct and can pass each stage. You can choose from Piano or Guitar Input for your answers, and you can chose to hear the notes and guitar or piano. Personally, I'd recommend getting used to both. In "Training Mode" you can select specific intervals to work on if you are struggling with just specific intervals or types of interval.

I'm sure you'll find this app very helpful, all you need to add is practice time!

Best wishes, Justin

What’s New

Version 2.11

Thanks to everyone for your feedback on the app. Please keep telling us what you think and how we can improve the app. In this update we've fixed some issues with the screen layout on iPhone X devices and updated the app to use Apple's latest development tools.

Ratings and Reviews

3.1 out of 5
7 Ratings

7 Ratings

SomeRandomArthur ,

Functional with glitches and missing feature

It does work. At times however it does not respond to touch input to select an interval. The Back button still works. Annoying.

Wish it had an automatic mode where it played interval then told answer after a few seconds. Could use this while driving or before falling asleep. Ideally, we could adjust how many times it plays before revealing result and allow config of time between.

Nostawen06 ,

Not working!

Love Justin’s videos but I just bought the app and it doesn’t work.

1162618::-9-6/ ,

Not compatible for iOS 11

Loved the app, but it’s been phased out by iOS. Wish it was compatible because it really helped my understanding of music


Justin Guitar Ltd
62.5 MB

Requires iOS 10.3 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© JustinGuitar Ltd


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