Download Music Theory - Chords in Keys apk 3.2 free for Android smartphone

22 Apr
Music Theory - Chords in Keys

Posted by Stuart Bahn in Education | April 22, 2015 | 19 Comments

Apk file size: 3.3 MB

A music theory app for everyone.

'Music Theory - Chords in Keys' is a music theory app that will train you to think your way around musical keys. You will learn what all the three and four note chords are within all 12 major, natural minor, harmonic minor and melodic minor scales - an extremely useful skill for any musician!

After installing 'Music Theory - Chords in Keys', choose the scale that you would like to work on (major, natural minor, harmonic minor, melodic minor) and the chord types (triads or sevenths). The app will then display a key and a Roman numeral chord number; you then have to work out what the chord within your chosen scale.

A summary of all the relevant music theory of chords within each of the scales is included in the help pages. With practice, you will know what all the fundamental three and four note chords are in each of the four scales, in all keys, and you will be a better musician because of it.

- No ads
- Low cost
- No gimmicks
- Simple clear layout
- No music-reading skills required!

This app is ideal for guitarists, pianist, brass players, wind players, strings players, singers and just about anyone that would like to improve their knowledge of music theory, chords and keys; whether you play rock, pop, jazz or classical music. 'Music Theory - Chords in Keys' is created by guitarist and music educator Stuart Bahn to help music students improve their musical knowledge even whilst away from their instruments.

Download 'Music Theory - Chords in Keys' now make your move towards music theory mastery.

MONEY BACK GUARANTEE: If you are in any way dissatisfied with this app, contact us within 24 hours of purchase for an immediate refund.

This app is designed to run on all Android smartphones. Because there are nearly 2000 different Android devices in the world, we can't test them all! If you do have a technical problem with your device, please don't leave a bad review, it's far more useful for all of us if you just let us know. We'll then do our best to address it asap or refund your payment.

Thanks and enjoy!

Whats new

    Version 3 - released 3 Jan 2015
    - Sound functionality added
    - Show notes of chord functionality
    - Show notes of parent scale functionality
    - Options screen added
    - Arabic of Roman numerals option
    - Number of sharps and flats option added
    - Expanded help pages
    - 'Rate app' button added
    3.1 improved share functionality
    3.2 minor correction

Stuart Bahn part of our Education and have average installs from 1000 to 5000. Last Update April 22, 2015. Google play rating is 91.7073. Current verison is 3.2. Actual size 3.3 MB.

Download music-theory-chords-in-keys.apk 3.3 MB


Josef Jolivette

Nice simple app, but when I select play chord in major triads sometimes it just plays the same not three times. Another suggestion would be to add answer choices. Also maybe you could also explain the relationship between I-VII since I have completely forgotten how to apply that format making knowing the roman numeral for the chords in each scale a little less applicable :(

Stephanie Buonaugurio

I haven't found an app for music theory that's as well designed as this. For me, I learn best in a test/quiz structure, this has been the only music app, after many searches and downloads and trials, that I haven't deleted. It really works

Tam Kearney

Music Theory by Stuart Bahn Minor keys now added. Also shows notes in chords and scales. Excellent musical app.

Greg Clagett

Great app! Stuart Bahn don't put out anything less than the best! Very informative for advanced and beginning guitarists!

Cristobal Montoya

Meh I needed an app like this for higher level theory courses. It's not up to par with the big kids. It would a great app IF it also had inverted, diminished, and augmented chords. Otherwise it's not worth the 4 dollars.

Vedran Grizancic

Great app 4 stars just because there is no challenge mode....the rest is very helpfull!

Mike Andrews

Awesome I have been looking for something like this for some time. It's the best!

Renee M

Great but needs an added feature A nice app that is simple and easy to use, but needs to have an option to pick an individual scale to study. Right now you have all 12 scales at once and that can be a daunting task for beginners.

Anton Maslo

Simple and straight to the point A great and simple tool, after two weeks of practice I feel my key awareness is improving. It would be nice to be able to enter answers for the app to keep track of my error rate and speed, yet this app is very helpful as is. Thank you!


Love it! Beautifully simple. Just what I've been looking for to help me learn harmonized chords in all scales and keys.

A Gulati

Great little app! Nice and simple. Does what is says.

Jordan-Lee Johnstone

Brilliant app This is a brilliant app to help you work out the chords in every major key quickly, real easy to use too.

Anders Rye

Brilliant! Excellent for practising chord theory knowledge.

Scott Fitzgerald

Helpful Useful in testing whether you really get it or not

Martin B

Nice learning tool Handy for app training yourself to match chords to keys. Simple to use. No adverts.

g smith

Chords in keys is a well designed and useful app.

Mike Andrews

Awesome I have been looking for something like this for some time. It's the best! I would like to see the circle of fifths and how chords move.

larry brown

Invaluable tool!!! Excellent for learning chords in Major keys, and much more. Larry Brown, Texas


This is a great app for learning where chords are in a scale. It's very helpful if you want to play chords and transpose. I highly recommend it.

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