Class: Music::Performance::ScoreCollator

Inherits:
Object
  • Object
show all
Defined in:
lib/music-performance/conversion/score_collator.rb

Overview

Combine multiple program segments to one, using tempo/note/dynamic replication and truncation where necessary.

Instance Method Summary collapse

Constructor Details

#initialize(score) ⇒ ScoreCollator

Returns a new instance of ScoreCollator.



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# File 'lib/music-performance/conversion/score_collator.rb', line 9

def initialize score
  unless score.valid?
    raise ScoreNotValidError, "errors found in score: #{score.errors}"
  end
  @score = score
end

Instance Method Details

#collate_meter_changes ⇒ Object 



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# File 'lib/music-performance/conversion/score_collator.rb', line 36

def collate_meter_changes
  collate_changes(@score.start_meter,
    @score.meter_changes, @score.program.segments)
end

#collate_parts ⇒ Object 



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# File 'lib/music-performance/conversion/score_collator.rb', line 16

def collate_parts
  segments = @score.program.segments
  
  Hash[
    @score.parts.map do |name, part|
	new_dcs = collate_changes(part.start_dynamic,
 part.dynamic_changes, segments)
	new_notes = collate_notes(part.notes, segments)
	new_part = Music::Transcription::Part.new(part.start_dynamic,
 dynamic_changes: new_dcs, notes: new_notes)
	[ name, new_part ]
    end
  ]
end

#collate_tempo_changes ⇒ Object 



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# File 'lib/music-performance/conversion/score_collator.rb', line 31

def collate_tempo_changes
  collate_changes(@score.start_tempo,
    @score.tempo_changes, @score.program.segments)
end