Enum Minor67Default 

pub enum Minor67Default {
    Quality,
    Flat,
    Sharp,
    Cautionary,
}

How a figure on the sixth or seventh degree of a minor key decides between the natural and the raised degree: music21’s Minor67Default.

Minor is two scales at once, and a vi might mean either of two chords. music21 lets a caller say which reading to use, and the readings differ in what they do with an accidental the figure already carries.

Variants

Quality

Read it from the chord the figure asks for: a minor triad on the sixth or a diminished chord on the seventh needs the raised degree, and a major one needs the natural. This is music21’s default and the reading most scores assume.

Flat

Always the natural degree, whatever the figure asks for. A sharp written in front still raises it.

Sharp

Always the raised degree. A flat written in front still lowers it.

Cautionary

As Quality, but an accidental already written in front is read as a caution rather than as a further change — so #vi and vi are the same chord, and so are bVI and VI.

Trait Implementations

impl Clone for Minor67Default

fn clone(&self) -> Minor67Default

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Minor67Default

impl Debug for Minor67Default

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

Formats the value using the given formatter.

impl Default for Minor67Default

fn default() -> Minor67Default

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Minor67Default

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 Eq for Minor67Default

impl Hash for Minor67Default

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 Minor67Default

fn eq(&self, other: &Minor67Default) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Minor67Default

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 Minor67Default