probabilities = {} probabilities[:none] = [0.0] * 16 probabilities[:all] = [1.0] * 16 probabilities[36] = [0.23, 0.0, 0.0, 0.0, 0.0, 0.0, 0.23, 0.0, 0.0, 0.0, 0.0, 0.0, 0.23, 0.0, 0.0, 0.0] probabilities[37] = [0.0, 0.0, 0.0, 0.0, 0.23, 0.0, 0.0, 0.0, 0.0, 0.0, 0.23, 0.0, 0.0, 0.0, 0.0, 0.0] probabilities[38] = [0.2, 0.0, 0.3, 0.0, 0.3, 0.1, 0.3, 0.4, 0.0, 0.0, 0.2, 0.0, 0.4, 0.0, 0.0, 0.0] probabilities[39] = [0.3, 0.0, 0.2, 0.6, 0.1, 0.0, 0.4, 0.1, 0.35, 0.15, 0.0, 0.0, 0.2, 0.0, 0.1, 0.0] probabilities[40] = [0.0, 0.0, 0.2, 0.0, 0.4, 0.0, 0.0, 0.0, 0.2, 0.0, 0.3, 0.0, 0.3, 0.1, 0.3, 0.4] probabilities[41] = [0.32, 0.0, 0.23, 0.0, 0.0, 0.0, 0.23, 0.0, 0.15, 0.0, 0.15, 0.0, 0.29, 0.0, 0.15, 0.0] probabilities[42] = [0.23, 0.0, 0.13, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.13, 0.0, 0.23, 0.0, 0.0, 0.35, 0.0] probabilities[43] = [0.3] * 16 probabilities[44] = [0.15] * 16 probabilities[45] = [0.32, 0.23] * 8 def note(midi_note_number, channel) Note.create(:channel => channel, :number => midi_note_number, :duration => 0.25, :velocity => 100 + rand(27)) end notes = [] if rand > 0.95 (36..45).each do |midi_note_number| notes << Drum.new(:note => note(midi_note_number, 3), :when => L{|beat| false}, :number_generator => L{rand}, :next => L{|queue| queue[rand(queue.size)]}, :probabilities => probabilities[midi_note_number] || probabilities[:none]) end end notes