New in version 1.1.
Change named chromatic pitches to inversion-equivalent chromatic interval-class number dictionary:
abjad> chord = Chord([0, 2, 11], (1, 4))
abjad> vector = pitchtools.named_chromatic_pitches_to_inversion_equivalent_chromatic_interval_class_number_dictionary(chord.written_pitches)
abjad> for i in range(7):
... print '\t%s\t%s' % (i, vector[i])
...
0 0
1 1
2 1
3 1
4 0
5 0
6 0
Changed in version 2.0: works with quartertones.
Return dictionary.
Changed in version 2.0: renamed pitchtools.get_interval_class_vector() to pitchtools.named_chromatic_pitches_to_inversion_equivalent_chromatic_interval_class_number_dictionary().