Twelve Tone

Dodecaphonic Composition and Analysis

Fantastic!!! ★★★★★

What a bold and beautiful app for the musically daring. I can put my scales and melodic pattern books away now. [...] Very Cool.......Thanks!

[U] The update made a great app even better! I'm a composer this app is not for amateurs but for musicians and composers looking to unlock ideas beyond traditional scales and chords. This is by far the best app on this subject on the app store. Another Cool update......Great!!

by turbogtr

Seriously good App! ★★★★★

Excellent tool for study. Many different uses even outside of writing 12 tone rows. 5 stars for writing this app! Not something you see around here very often!

by jazzimprov

Great App :) ★★★★★

This is becoming indispensable for my composition process. [...] Excellent work, nice app :)

by Neilos

Unique and incredible teaching tool! ★★★★★

I lecture in music, recording and composition at a large institution (dBs Music, Plymouth, UK) in both FE and HE sectors and Patrick's apps are just incredible for teaching with. There are plenty of coders writing music apps in the App Store but his show the unique musical insights only an expert and practicing musician would have. Amazing stuff. Amazing value. You will turn to these apps time and time again. Buy.

by Phineas Head

Interface Guide

Selecting a Pitch

Using the Staff: Simply touch and drag up and down on the staff to select the note, slide right for sharp, left for flat, or slide up and down right or left of the note for constant sharps and flats.

Using the Piano: Swipe to move the keyboard, tap to play notes, touch & hold then slide to glissando. When you glissando up the keyboard, notes will be notated with sharps, when you glissando down, notes will be notated with flats. When you tap specific notes they will be notated in the most common accidental for that note. ie: Eb rather than D#, F# rather than Gb.

Playback Features

Adjust the tempo, select from over a dozen rhythmic patterns, select the form(s) you want to hear, set them to loop or play through only once.

Each sequence can be repeated and transposed over a five octave range. Two octaves below to two octaves above the written row.

You can also select the direction you want the octaves to play. Lowest octave to highest, or highest to lowest.

Press and watch the notes and piano keys highlight as the row is played. See the relationship of the Inversion played on top of the Prime while it's playing.

Playback Form Options:

  • Prime
  • Prime then Retrograde
  • Retrograde then Prime
  • Retrograde
  • Inversion
  • Inversion then Retrograde Inversion
  • Retrograde Inversion then Inversion
  • Retrograde Inversion

Changing on the fly:

You can change tempo, rhythmic pattern, row form(s) to play, which octaves and what direction, root note, individual notes, transpose the entire row, pretty much anything you want.

The rhythmic pattern waits to change until the beginning of the next loop.

Changing the form and notes happens instantly and reflect the current state of the row, so if you change the root note, the Inversion, which may be playing, will reflect the new Inversion values. This is obvious when the row is unlocked and you change the first (root) note with the rest of the row unchanging.

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