Music.Theory.Pitch.Note
data Note_T
note_to_pc
note_t_transpose
data Alteration_T
generic_alteration_to_diff
alteration_to_diff
alteration_is_12et
alteration_to_diff_err
alteration_to_fdiff
fdiff_to_alteration
alteration_raise_quarter_tone
alteration_lower_quarter_tone
alteration_edit_quarter_tone
alteration_clear_quarter_tone
alteration_symbol
alteration_iso_m
alteration_iso
alteration_tonh
type Alteration_T'
alteration_t'
type Spelling n