1-1

prime form 0 · vector 000000 · 12 sets

One shape, its own mirror

steps 12

range 0 · 12 transpositions · 1 mode

Interval-class vector
ic1	ic2	ic3	ic4	ic5	ic6
0	0	0	0	0	0

A single pitch class holds no intervals.

Common tones under Tn
T0	T1	T2	T3	T4	T5	T6	T7	T8	T9	T10	T11
1	0	0	0	0	0	0	0	0	0	0	0

Notes a set keeps when transposed by n.

Common tones under TnI
T0I	T1I	T2I	T3I	T4I	T5I	T6I	T7I	T8I	T9I	T10I	T11I
1	0	0	0	0	0	0	0	0	0	0	0

Notes a set keeps when inverted about n.

Set theory treats D# and Eb as one pitch class; the names under each set use one fixed spelling, sharps except Bb.

Complement: 11-1 0123456789t
Z-partner: none: no other class has this interval vector
Symmetry: T0 and one inversion map it onto itself
Inside it: no smaller class of two notes or more
Around it: 2-1 ×2 · 2-2 ×2 · 2-3 ×2 · 2-4 ×2 · 2-5 ×2 · 2-6 · and 216 larger classes