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Twelve Tone

An extensive music composition and analysis tool

An extensive music composition and analysis tool

Twelve Tone

by Patrick Q. Kelly
Twelve Tone
Twelve Tone
Twelve Tone

What is it about?

An extensive music composition and analysis tool.

Twelve Tone

App Details

Music Education
Last updated
May 25, 2018
Release date
January 4, 2011
More info

App Screenshots

Twelve Tone screenshot-0
Twelve Tone screenshot-1
Twelve Tone screenshot-2
Twelve Tone screenshot-3

App Store Description

An extensive music composition and analysis tool.

• Enter a tone row by touching the staff or playing the piano keyboard (on iPad).
• Twelve Tone lets you know if any notes are repeated by highlighting both notes, checking enharmonic values regardless of octave or accidentals.
• Derive rows using Hexachords, Tetrachords or Trichords. Color blocks help keep track of the different groups.
• Save your rows (rows may contain from 1 to 12 notes), complete with name and current P, R, I, RI matrix markings. Saved rows appear in a list with their name and midi numbers to help you identify them.
• Hear your row played at your set tempo with selected rhythmic pattern.
• Select from over a dozen rhythmic values / patterns.
• Watch the notes and piano keys highlight as the row is played.
• Select what form(s) of the row you want played just once or looped.
- Prime
- Prime then Retrograde
- Retrograde then Prime
- Retrograde
- Inversion
- Inversion then Retrograde Inversion
- Retrograde Inversion then Inversion
- Retrograde Inversion
• Each sequence can be repeated and transposed with each iteration.
• Select the direction you want the interval to transpose.
• The Root is kept within an octave above and below the original pitch when looping and transposing.
You can change any of these parameters on the fly. The rhythmic pattern changes at the beginning of the next loop.

•• Twelve Tone will automatically create the Prime, Inversion, Retrograde, and Retrograde Inversion Magic Square.

• Matrix Audio: Hear the pitches as you mark them in the matrix square. The marks indicate the row form in which the pitch belonged; Prime, Inversion, Retrograde, and Retrograde Inversion.

• Lock the prime row and transpose it to C to use the Absolute Pitch Method for row labeling in the matrix.

Comes preloaded with the following rows:
Alban Berg's Lyric Suite
Babbitt's Composition for Four Instruments
Schoenberg's Variations for Orchestra Op.31
Schoenberg's Piano Piece Op.33a
Webern's Concerto Op.24
Webern's Piano Variations Op.27
Webern's String Quartet Op.28

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