3.6. pctheory.pitch
This module contains classes for working with pitches and pitch-classes.
class PitchClass12
Represents a pitch-class from the twelve-note equally-tempered chromatic scale. Notes are represented mathematically with integers mod 12.
PitchClass12 constructor
PitchClass12.__init__(pc: int = 0)
Constructs a PitchClass12. You may choose to provide a pitch-class to initialize the PitchClass12.
PitchClass12 properties
PitchClass12.pc int
The pitch class integer 0 ≤ pc < 12.
PitchClass12 read-only properties
PitchClass12.pc_str str
The string representation of the current pitch-class (0, 1, ..., A, B).
class PitchClass24
Represents a pitch-class from the 24-note equally-tempered microtonal scale. Notes are represented mathematically with integers mod 24.
PitchClass24 constructor
PitchClass24.__init__(pc: int = 0)
Constructs a PitchClass24. You may choose to provide a pitch-class to initialize the PitchClass24.
PitchClass24 properties
PitchClass24.pc int
The pitch class integer 0 ≤ pc < 24.
PitchClass24 read-only properties
PitchClass24.pc_str str
The string representation of the current pitch-class (00, 01, ..., 23, 24).
class Pitch12
This class represents a pitch. It inherits from PitchClass12 and contains all of the properties from that class.
Pitch12 constructor
Pitch12.__init__(p: int = 0)
Constructs a Pitch12. You may choose to provide a pitch to initialize the Pitch12.
Pitch12 properties
Pitch12.p int
The pitch integer. 0 is C4; positive values are above C4, and negative values are below C4.
Pitch12.pname str
A courtesy field for assigning a name to a pitch. This can be useful when converting to music21 objects, if you wish to specify enharmonic equivalents.
Pitch12.midi int
The midi number of the current pitch.
class Pitch24
This class represents a pitch. It inherits from PitchClass24 and contains all of the properties from that class.
Pitch24 constructor
Pitch24.__init__(p: int = 0)
Constructs a Pitch24. You may choose to provide a pitch to initialize the Pitch24.
Pitch24 properties
Pitch24.p int
The pitch integer. 0 is C4; positive values are above C4, and negative values are below C4.
Pitch24.pname str
A courtesy field for assigning a name to a pitch. This can be useful when converting to music21 objects, if you wish to specify enharmonic equivalents.