Set Theory Calculator
Pitch Set Analysis Tool
Only for iPhone
$3.99 · Designed for iPhone. Not verified for macOS.
iPhone
Set Theory Calculator is a musical set theory analysis tool and compositional aid. Using the app, you can define pitch class sets, then analyze and perform various musical set theory operations on the sets.
For pitch sets you define, the app will:
* Calculate Normal Form and Prime Form
* Display the Forte Number
* Calculate the interval class vector
* Show transposed and inverted sets
* Display a set matrix
* Sort, invert or complement the set
* Play the notes of the set as a melody or chord
The app also includes a comprehensive written overview of musical set theory. Composers like Arnold Schoenberg, Alban Berg and Anton Webern employed set theory techniques to organize the pitch content of their works.
* Additional playback instruments
* Analytics update
* iOS 27 validation
The developer, L Tomlin, 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
- L Tomlin
- Size
- 7.9 MB
- Category
- Music
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 L. Jay Tomlin
