NSM Circle of Fifths
Harmony, Scales & Modes
Free · Designed for iPad. Not verified for macOS.
NSM Circle of Fifths is an interactive music theory companion by Nathaniel School of Music for students, teachers, composers, and improvisers.
Explore keys, scales, modes, intervals, harmonic movement, cadences, modulation paths, and progressions around the circle of fifths. The app combines clear visual maps with playable examples so you can see, hear, and practice how music connects.
FEATURES
* Interactive circle of fifths visualization
* Major and minor key signatures with relative key relationships
* 13 learning modes covering scales, modes, cycles, harmony, and practice
* 24 guided lessons and hundreds of quiz questions
* Ear-training and interval practice
* Progression, cadence, and modulation tools
* Tone.js audio playback for scales, chords, and patterns
* Works without an account
BY NATHANIEL SCHOOL OF MUSIC
Built for practical music learning, composition practice, and harmony fluency.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improves iOS audio playback reliability and native app behavior.
The developer, Jason Zachariah, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jason Zachariah
- Size
- 7.3 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nathaniel School of Music