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Versions: 16
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Contents
# frozen_string_literal: true
# Octave equivalence is the functional equivalence of pitches with the same spelling separated by one or more octaves.
class HeadMusic::Pitch::OctaveEquivalence
def self.get(pitch)
@octave_equivalences ||= {}
@octave_equivalences[pitch.to_s] ||= new(pitch)
end
attr_reader :pitch
def initialize(pitch)
@pitch = pitch
end
def octave_equivalent?(other)
other = HeadMusic::Pitch.get(other)
pitch.spelling == other.spelling && pitch.octave != other.octave
end
alias equivalent? octave_equivalent?
private_class_method :new
end
Version data entries
16 entries across 16 versions & 1 rubygems