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5thsFlow - Circle of 5ths

5thsFlow - Circle of 5ths

Music Theory & Chord Builder

1 ratings
1 review
📚 Education
🎵 Music
$4.99

Details

  • Released
  • Updated
  • June 25, 2026
  • June 27, 2026

Features

Developer

James Roche
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5thsFlow - Circle of 5ths screenshot #1 for iPhone
5thsFlow - Circle of 5ths screenshot #2 for iPhone
5thsFlow - Circle of 5ths screenshot #3 for iPhone
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5thsFlow - Circle of 5ths screenshot #10 for iPhone
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About

This interactive music theory tool helps musicians understand chord relationships, modes, and key signatures. Explore diatonic chords, experiment with voicings and extensions, and build chord progressions. It even features a microphone to detect the current key.

✓Interactive Circle of Fifths
✓Diatonic chords and Roman numerals
✓7 modes with arpeggiated playback
✓Chord voicings and extensions
✓Chord progression builder
✓Microphone key detection
✓Haptic feedback for chord quality
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What's New in 5thsFlow

1.2

June 27, 2026

Improved audio reliability — Fixed an issue where sound could stop working after using the key detection feature, particularly when Bluetooth headphones are connected.

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User reviews

Most RecentHighest RatedLowest Rated

Doesn’t work with headphones (UPDATE)

Previous review: No sound comes out when Bluetooth headphones are used. When headphones are then disconnected, sound doesn’t work at all and the app has to be deleted and reinstalled.

UPDATE: The developer was very attentive to this issue and it seems like a fix is underway, thanks! Really enjoying this app so far.
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JarheadButtersJarheadButters

Response from developer

Thanks for reporting that. Although I couldn't replicate it with my AirPods, I was able to test on a pair of Soundcore bluetooth headphones and I was able to replicate your issue then. Sorry for that but I found the bug I believe and submitted an update to Apple already. Please keep an eye out for version 1.2 coming soon.

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FAQ

What is 5thsFlow?

5thsFlow is an interactive Circle of Fifths application designed to help musicians understand music theory concepts like chords, modes, and key signatures. It offers real-time audio playback and visual representations of musical relationships.

How does 5thsFlow help with understanding chords?

5thsFlow displays the 7 diatonic chords for any selected key, including their Roman numerals and chord functions. You can also explore various chord voicings and extensions to hear how they alter the chord's sound.

Can 5thsFlow help me build chord progressions?

Yes, 5thsFlow includes a sequencer where you can add chords from any key to build and loop chord progressions. You can save and reload your created progressions.

Does 5thsFlow have a feature to detect the current key?

Yes, 5thsFlow has a microphone detector that listens to your instrument and ranks the most likely keys in real time, providing a confidence level for each.

What devices is 5thsFlow available on?

5thsFlow is designed for both iPhone and iPad devices, offering a seamless experience across Apple's mobile platforms.

How much does 5thsFlow cost?

5thsFlow is a paid application priced at $4.99. There are no in-app purchases or subscriptions required after the initial purchase.

Does 5thsFlow have ads?

No, 5thsFlow does not contain advertisements. As a paid application, it provides an uninterrupted user experience focused on music theory exploration.

What is the update frequency for 5thsFlow?

The latest version of 5thsFlow is 1.2, which was last updated on June 27, 2026. While specific update frequency isn't detailed, this indicates ongoing development and support.