Sha256: 2c0628031d0185ae95054de077d9d30bbcc84d4dd82caee763b9ea6600ac89f7
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Size: 768 Bytes
Versions: 23
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Contents
module Music
module Transcription
# Represent the musical tempo, with beats ber minute and beat duration.
class Tempo
include Comparable
attr_reader :beats_per_minute, :beat_duration
def initialize beats_per_minute, beat_duration = Rational(1,4)
@beats_per_minute = beats_per_minute
@beat_duration = beat_duration
end
def ==(other)
(other.beats_per_minute == @beats_per_minute) &&
(other.beat_duration == @beat_duration)
end
def notes_per_second
(@beats_per_minute * @beat_duration) / 60.0
end
def between? a, b
notes_per_second.between? a, b
end
def <=>(other)
if other.is_a? Tempo
notes_per_second <=> other.notes_per_second
else
notes_per_second <=> other
end
end
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems