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Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Circle o Fifths: Music Theory Screenshots

iPad

iPhone

About Circle o Fifths: Music Theory

Grab your instrument, and hear and learn the circle of fifths! This handy music practice and theory tool can be a game changer to help you learn and even write your own songs.

Features:
-3 full rings with support for all the major and minor keys
-36 interactive notes/chords
-36 real guitar audio recordings of every chord on the circle
-36 guitar chord charts, just tap and hold to learn
-Color coding to help you easily reference and learn the note/chord you are playing
-NEW! Chords tab to see all the chords in each key, toggle between major/minor to see the relationships

The outside ring of the circle has all the major keys. Tap on any of them to hear and change the key. The color coding will tell you which number the chord or note is. The middle ring has all the minor keys, and the inner ring has the diminished chords/notes. You can tap on any chord/note to hear how it sounds, and tap and hold to see the guitar chord and how to play it!

If you are playing a song in a major key, use the color coding up top to understand the chord/note relationships.

If you are playing a song in a minor key, use the color coding on the bottom to understand the chord/note relationships.

Use the chords tab to easily play songs in any key, transpose on the fly, see major/minor key relationships, and more.

What's New in the Latest Version 1.3.3

Last updated on May 14, 2022

Old Versions

A few small bug fixes, and design polish.

Version History

1.3.3

May 14, 2022

A few small bug fixes, and design polish.

1.3.2

Sep 15, 2020

A little late summer polish. Happy playing!

1.3.1

Sep 2, 2020

Fixed a little bug in the tutorial. Happy playing!

1.3

Aug 30, 2020

Chords tab! Once you pick your key, it's so nice to see all the chords in that key on one screen as you practice/write/play songs. The chords tab is built just for that. Choose your key from the circle, or the chords tab, transpose on the fly, toggle between major/minor keys, and learn and hear those chords!

1.2.4

May 22, 2020

Polish for the people!

1.2.3

May 18, 2020

Just some polish in this version.

1.2.2

May 13, 2020

The app now plays sounds even when you have your phone on silent mode.

1.2.1

May 12, 2020

Just some polish in this update. Don't forget to check out the new 36 guitar chord charts on the circle, just tap and hold! Also the handy tutorial that walks you through how to use the app. Happy playing!

1.2

Apr 26, 2020

This update adds the ability to learn how to play all 36 guitar chords on the circle, just tap and hold! Also added a handy tutorial that walks you through how to use the app. Happy playing!

1.1.3

Mar 18, 2020

Polished a few things.

1.1.2

Mar 8, 2020

Now you can re-tap on any chord while it's still playing to restart it!

1.1.1

Feb 28, 2020

Polished a few things

1.1

Feb 20, 2020

Fix for the help button.