Enum ScaleType 

#[non_exhaustive]
pub enum ScaleType {
    Major,
    Minor,
    Dorian,
    Phrygian,
    Lydian,
    Mixolydian,
    Locrian,
    Hypodorian,
    Hypophrygian,
    Hypolydian,
    Hypomixolydian,
    Hypolocrian,
    Hypoaeolian,
    HarmonicMinor,
    MelodicMinor,
    Chromatic,
    WholeTone,
    Octatonic,
    RagAsawari,
    RagMarwa,
}

A named scale from music21’s scale module.

Ordered as music21 defines them: the seven church modes, their plagal counterparts, the altered minors, then the symmetrical and non-Western scales.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Major

Major (Ionian).

Minor

Natural minor (Aeolian).

Dorian

Dorian mode.

Phrygian

Phrygian mode.

Lydian

Lydian mode.

Mixolydian

Mixolydian mode.

Locrian

Locrian mode.

Hypodorian

Hypodorian mode. Shares Dorian’s pitches; the ambitus differs.

Hypophrygian

Hypophrygian mode. Shares Phrygian’s pitches.

Hypolydian

Hypolydian mode. Shares Lydian’s pitches.

Hypomixolydian

Hypomixolydian mode. Shares Mixolydian’s pitches.

Hypolocrian

Hypolocrian mode. Shares Locrian’s pitches.

Hypoaeolian

Hypoaeolian mode. Shares natural minor’s pitches.

HarmonicMinor

Harmonic minor, with a raised seventh.

MelodicMinor

Ascending melodic minor.

Chromatic

Twelve-tone chromatic scale.

WholeTone

Six-tone whole-tone scale.

Octatonic

Eight-tone octatonic scale, alternating tone and semitone.

RagAsawari

Rag Asawari, as a five-tone ascending scale.

RagMarwa

Rag Marwa, as a seven-step ascending scale.

Not monotonic: music21’s ascending network dips back down a major second from the sixth degree before rising a minor third to the octave, so the realized pitches repeat a note and briefly descend.

Implementations

impl ScaleType

pub const ALL: [ScaleType; 20]

Every scale type, in declaration order.

pub fn music21_name(self) -> &'static str

Returns the music21 class name for this scale.

pub fn degree_count(self) -> usize

Returns the number of distinct degrees in one octave.

Trait Implementations

impl Clone for ScaleType

fn clone(&self) -> ScaleType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ScaleType

impl Debug for ScaleType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ScaleType

impl Hash for ScaleType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ScaleType

fn eq(&self, other: &ScaleType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ScaleType