Join or Sign In

Sign in to add and modify your software

Continue with Facebook Continue with email

By joining, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.

12 Tone Matrix Calculator - Music Composition for Android

By datapluscode Free

Developer's Description


This calculator helps identify all the pitch intervals required when using twelve-tone technique to create a twelve note music composition.

Simply enter the 12 starting tones, and the app will calculate the inversions and other forms.

If you wish you can generate a random matrix, and also view the matrix as either sharps/flats or pitch class integers.


Twelve-tone technique also known as dodecaphony, twelve-tone serialism or twelve tone composition, is a method of musical composition devised by Austrian composer Arnold Schoenberg (18741951). It is associated with the "Second Viennese School" of composers, who were the primary users of the technique in the first few decades of its existence. The matrix itself has been referred to as a Babbitt square after the mathematician Milton Babbitt who invented it.

This style of music composition is a means of ensuring that all 12 notes of the chromatic scale are sounded as often as one another in a piece of music while preventing the emphasis of any one note through the use of tone rows, orderings of the 12 pitch classes.

All 12 notes are thus given more or less equal importance, and the music avoids being in a key. Over time, the technique increased greatly in popularity and eventually became widely influential on 20th century composers. Many important composers who had originally not subscribed to or even actively opposed the technique, such as Aaron Copland and Igor Stravinsky have adopted it in their music.

Schoenberg himself described the system as a "Method of composing with twelve tones which are related only with one another". It is commonly considered a form of serialism.

Full Specifications

What's new in version 1.3.4


Release January 4, 2020
Date Added January 4, 2020
Version 1.3.4

Operating Systems

Operating Systems Android
Additional Requirements Requires Android 4.1 and up


Total Downloads 1
Downloads Last Week 0
Report Software

Related Apps



Star Chart

Star Chart

Bible for Kids

Bible for Kids

CES 6.0.0 Answers

CES 6.0.0 Answers

Best VPN Services for 2021

Best for privacy

3 months free with 1-year plan

Best for customer support

$39.99 for the first 12 months

Best for zero logs

$4.87.99/months for a 1-year plan

Best money-back guarantee

$2.99/months for a 3-year plan