Theory IV · Post-tonal
Analysis tools
Utilities for set-class analysis and twelve-tone composition — reference calculators, not exercises.
Showing sample analyses. Choosing your own pitch-class sets and
twelve-tone rows becomes available when the set-class engine lands.
Input pitch classes
A sample set is shown. The calculator will compute the prime form, interval vector, and related sets from your selection.
C
C♯
D
E♭
E
F
F♯
G
A♭
A
B♭
B
{0, 3, 7}
3 pitches
Set class
Prime form(0, 3, 7)
Forte name3-11A
Common nameMinor triad
Cardinality3
Interval vector
i10
i20
i31
i41
i51
i60