#from abjad import *
#
#
#def test_pitchtools_letter_pitch_number_to_octave_01():
#
#   assert pitchtools.letter_pitch_number_to_octave('c', 12) == 5
#   assert pitchtools.letter_pitch_number_to_octave('c', 13) == 5
#   assert pitchtools.letter_pitch_number_to_octave('c', 24) == 6
#   assert pitchtools.letter_pitch_number_to_octave('c', 25) == 6
