Struct Progression 

pub struct Progression {
    pub chords: Vec<(Chord, f32)>,
    pub current: usize,
    pub beat_clock: f32,
}

A sequence of chords with durations (in beats).

Fields

chords: Vec<(Chord, f32)>

current: usize

beat_clock: f32

Implementations

impl Progression

pub fn new(chords: Vec<(Chord, f32)>) -> Self

pub fn one_five_six_four(octave: i32) -> Self

I–V–vi–IV in major (pop progression).

pub fn minor_pop(octave: i32) -> Self

i–VI–III–VII (minor pop).

pub fn two_five_one(octave: i32) -> Self

ii–V–I (jazz).

pub fn tick(&mut self, beat_delta: f32) -> Option<&Chord>

Advance the progression clock by beat_delta. Returns Some(chord) when a new chord starts.

pub fn current_chord(&self) -> Option<&Chord>

pub fn progress_in_chord(&self) -> f32

Trait Implementations

impl Clone for Progression

fn clone(&self) -> Progression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Progression

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

Formats the value using the given formatter.