New in version 1.1.
Change chromatic pitch-class number to chromatic pitch-class name with flats:
abjad> for n in range(13):
... pc = n / 2.0
... name = pitchtools.chromatic_pitch_class_number_to_chromatic_pitch_class_name_with_flats(pc)
... print '%s %s' % (pc, name)
...
0.0 c
0.5 dtqf
1.0 df
1.5 dqf
2.0 d
2.5 etqf
3.0 ef
3.5 eqf
4.0 e
4.5 fqf
5.0 f
5.5 gtqf
6.0 gf
Return string.
Changed in version 2.0: renamed pitchtools.pc_to_pitch_name_flats() to pitchtools.chromatic_pitch_class_number_to_chromatic_pitch_class_name_with_flats().