Ultimate Circle Of Fifths

This app allows you to easily compose great sounding chord progressions! It highlights the chords of a certain key in different colors. In this way, you can see directly which chords are major, minor and diminished. This is very helpful for composing and practicing - no matter which instrument you are playing!

For Songwriters:

Create chord progressions with the help of the circle of fifths. You do not necessarily have to understand the theory behind it, the app will just help you to come up with cool chords!

For Beginners:

Get familiar with the circle of fifths. You can compose and practice chord progressions and visualize them in the circle. You can practice scales in different keys and clefs. Playback scales and train your ear.

You have a keyboard which can be activated to display the tones of which the chord consists.

For Pros:

Display and playback 4-note chords and practice scales from Ionian to Melodic minor.

All Features:


Compose progressions, playback them and see the chord relations within the circle of fifths. You can put together 4-8 bars and repeat them. In this way, you can compose two parts (like verse and chorus) and hear how they sound like together!

Export Progressions as MIDI file.

You can tap in the playback tempo or adjust it manually (40 - 240 bpm). Playback progressions with or without a click and/or piano. Practice progressions along with the circle of fifths. Your progressions will be visualized in the circle. There are some predefined common progressions or you can compose your own. You can pick chords from the current key for your progressions and adjust the mode to Ionian, Aeolian, Dorian, Phrygian, Lydian, Mixolydian, Locrian or even harmonic and melodic minor.
You can add additional tones within key to each chord.
You can display either the chords, roman numerals or both.
Quickly change the key for your progression. Once you've composed a progression you can quickly change the key for the whole progression.


Practice scales in different keys and modes. Available modes:

- Ionian (major)
- Aeolian (minor)

- Dorian
- Phrygian
- Lydian
- Mixolydian
- Locrian
- Harmonic minor
- Melodic minor

Practice scales in different clefs. Available clefs:

- G clef
- F clef
- C clef

You have three playback sounds:

- Grand Piano
- Synth Pad
- MIDI-like flute sound

Display minor chords in small letters
Display german note names (B will be H)
Display 4-note-chords
Playback chords on tap

- chord symbols and chord structures are explained
- chords are displayed on the keyboard
- some Wikipedia articles are linked

Note: On older devices, the playback function can be inaccurate (tempo). If this occurs try closing other apps and not to interact with the interface (dragging wheel, picking chords)!

Please note that you currently cannot use Bluetooth speakers or headphones. I hope to get that working soon!
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What's New

Performance optimization and a new MIDI-like flute sound which will load much faster than the acoustic sounds...
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Additional Information

March 20, 2018
Current Version
Requires Android
5.0 and up
Content Rating
Offered By
Christian Hengst
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