Scale

public struct Scale

Ordered sequence of pitch intervals.

A Scale may or may not be octave invariant, and it may or may not be infinitely protracting.

Example Usage

let cMajor: Scale = [0,2,4,5,7,9,11]
let cSharpWholeTone = Scale(1, [2,2,2,2,2,2])
let gHarmonicMinor = Scale(7, .harmonicMinor)

Instance Properties

  • The root (lowest) pitch of this Scale.

    Declaration

    Swift

    public let root: Pitch

  • The intervals which comprise this Scale.

    Declaration

    Swift

    public let intervals: IntervalPattern

Nested Types

  • The pattern of intervals which defines the quality of a Scale.

    Example Usage

    let major: IntervalPattern = [2,2,1,2,2,2]
let wholeTone: IntervalPattern = [2,2,2,2,2,2]
let octatonic12: IntervalPattern = .octatonic12
let tetrachord = IntervalPattern([2,2,1], isLooping: false)
    See more

    Declaration

    Swift

    public struct IntervalPattern

Computed Properties

  • Declaration

    Swift

    public var isOctaveInvariant: Bool { get }

    Return Value

    true if the intervals contained herein span 12 semitones. Otherwise, false.

Sequence

ExpressibleByArrayLiteral