Module musictheory::types

Core Types:

• Pitch - Discrete PitchClass at a given Octave pinned to a tuned frequency.
• PitchClass - Notes reduced to the 12 discrete Semitones.
• PitchGroup - Musical Keys reduced to the 12 discrete PitchClass Combinations.
• Octave - Pitch range for a given set of Pitches.
• Cents - Logarithmic distance between two Pitches.
• Steps - Distance between two Pitches measured in Semitonal Steps.

Music Theory Types:

• Tone - A Note at a given Octave.
• Note - Various Names given to PitchClasses in Musical Theory.
• Key - Unimplemented
• Octave - Range for a given set of Tones.
• Interval - Distance Between Two Pitches
  • PerfectQuality - Quality of First, Fourth, Fifth, and Seventh Intervals.
  • MajorQuality - Quality of the Second, Third, and Sixth Intervals.
• Degree - Note Positions in a Scale
• Scale - In music theory, a scale is any set of musical notes ordered by fundamental frequency or pitch. A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale.

Modules

sequences

Structs

Cents	Representation of Logarithmic pitch distance based on an equal tempered semitone (100 cents) and octave (1200 cents).
CircleOfFifths	In music theory, the circle of fifths is the relationship among the 12 tones of the chromatic scale, their corresponding key signatures, and the associated major and minor keys.
Matrix	The Pitch Matrix is a set of static Reference Tables containing Ordered Note Accidentals, Interval, and Degree based on PitchClass and PitchGroup.
Pitch	Pitch is the unique Combination of PitchClass and Octave.
Steps	Steps is the distance in semitones between two PitchClasses.
Tone	Tone is a Note at a specific Octave.

Enums

Accidental	Accidentals describe if a Note is natural, sharp or flat.
Degree	Degrees are a representation of particular notes in a sequence.
Form	A Notation of whether a key signature is Sharp or Flat in nature.
Interval	Interval is the distance between two PitchClasses.
MajorQuality	MajorQuality is the Interval Quality of the Second, Third, Sixth, and Seventh.
Mode	Mode is a type of musical scale coupled with a set of characteristic melodic behaviors. TODO: Deprecate?
Note	Notes are names given to a specific PitchClass.
Octave	Octave of a Pitch.
PerfectQuality	PerfectQuality is the Interval Quality of the First, Fourth, and Fifth.
PitchClass	PitchClass is the unified representation of the 12 semitone harmonics used in western music.
PitchGroup	Pitch Group is the Y Axis on the Matrix Table
PitchMode	Sequence of PitchClasses in modal order for a given PitchGroup.
Scale	Scale is a sequence of intervals and a series of notes that match those intervals.