12-Tone Toolkit
Serial composition utilities — derived rows, matrix, set-class calculator.
Derived Rows
Matrix
Set Calculator
Generator Setup
Trichord (3 × 4)
Tetrachord (4 × 3)
Initial Pitch Classes (0–11):
Space-separated. 0=C 1=C♯ 2=D … 10=A♯ 11=B
Find 5 Derived Rows ▸
Results
Re-Roll
Enter a 12-Tone Row
All 12 pitch classes (0–11), space-separated. Or use a result from the Derived Row Finder.
Generate Matrix ▸
Show note names
12-Tone Matrix
Click P / I / R / RI labels to hear row forms.
Set-Class Calculator
Pitch Classes (0–11):
Space-separated, 2–12 pitch classes. e.g. 0 1 4
Calculate ▸