Enum Specifier 

pub enum Specifier {
    Perfect = 1,
    Major = 2,
    Minor = 3,
    Augmented = 4,
    Diminished = 5,
    DoubleAugmented = 6,
    DoubleDiminished = 7,
    TripleAugmented = 8,
    TripleDiminished = 9,
    QuadrupleAugmented = 10,
    QuadrupleDiminished = 11,
}

An interval quality, numbered as music21 numbers its Specifier enum.

Variants

Perfect = 1

P

Major = 2

M

Minor = 3

m

Augmented = 4

A

Diminished = 5

d

DoubleAugmented = 6

AA

DoubleDiminished = 7

dd

TripleAugmented = 8

AAA

TripleDiminished = 9

ddd

QuadrupleAugmented = 10

AAAA

QuadrupleDiminished = 11

dddd

Implementations

impl Specifier

pub const ALL: [Specifier; 11]

Every specifier, in music21’s numbering order.

pub fn value(self) -> IntegerType

music21’s number for the specifier, 1 for perfect through 11.

pub fn from_value(value: IntegerType) -> Result<Self>

The specifier with music21’s number, if there is one.

pub fn nice_name(&self) -> String

Returns a human-friendly name for the specifier, music21’s niceName.

pub fn from_name(name: &str) -> Result<Self>

Parses a specifier the way music21’s parseSpecifier does: a prefix such as "P", "m" or "AA", or a spelled-out name such as "Perfect" or "Doubly-Augmented".

Case is significant only for m/M: minor and major are the one pair where both spellings already denote different intervals. Every other specifier accepts either case, which is exactly the distinction music21 draws — a2/A2, d5/D5, p5/P5 and the doubled and tripled forms all parse there, while m3 and M3 stay distinct. Lowercasing the input wholesale would silently turn every major third minor.

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

Returns the prefix music21 writes before the interval number, such as "P", "m" or "AA".

pub fn inversion(&self) -> Self

The specifier of the inverted interval: major becomes minor, augmented becomes diminished, perfect stays perfect.

pub fn semitones_above_perfect(&self) -> Result<IntegerType>

How many semitones above perfect the specifier lies. Major and minor cannot be compared to perfect and are an error, as in music21.

pub fn semitones_above_major(&self) -> Result<IntegerType>

How many semitones above major the specifier lies. Perfect cannot be compared to major and is an error, as in music21.

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

music21’s enum member name, PERFECT, DBLAUG, QUADDIM.

Trait Implementations

impl Clone for Specifier

fn clone(&self) -> Specifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Specifier

impl Debug for Specifier

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Specifier

Available on crate feature serde only.

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Specifier

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

The prefix, as str(Specifier.PERFECT) is P in music21.

impl Eq for Specifier

impl FromStr for Specifier

type Err = Error

The associated error which can be returned from parsing.

fn from_str(name: &str) -> Result<Self>

Parses a string s to return a value of this type.

impl Hash for Specifier

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 Specifier

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Specifier

Available on crate feature serde only.

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Specifier