sonic pi mash.rb

#samples = Dir.glob("/path/to/samples/*.wav")
#samples = [:loop_amen_full, :ambi_choir]
#samples = [:ambi_choir]
samples = [:guit_harmonics]


#starts = (ring 0, 0.25, 0.5, 0.75)
#starts = range(0, 0.875, 0.125)
starts = range(0, 0.875, 0.0625)
#starts = (0..10).collect{rand(1)}
rates = (ring -4, -3, -2, -1, 1, 2, 3, 4, 0.75, 0.5, -0.75, -0.5)
repeats = (ring 1, 1, 1, 1, 2, 3, 4, 6, 8, 16)
decays = (ring 0.015, 0.15, 0.25)

live_loop :loop1 do
  nextSample = choose(samples)
  nextDecay = choose(decays)
  nextStart = choose(starts)
  nextRate = choose(rates)
  shouldAmpChange = rand(1) < 0.4
  shouldAttackChange = rand(1) < 0.1
  shouldRateChange = rand(1) < 0.25
  shouldRateGoUp = rand(1) < 0.5

  choose(repeats).times do |t|
    nextRate = shouldRateChange ? (shouldRateGoUp ? (4.0*(t+1.0)) : (4.0/(t+1.0))) : nextRate
    nextAmp = shouldAmpChange ? (4.0/(t+1.0)) : 4
    nextAttack = shouldAttackChange ? (0.01*(t+1.0)) : 0
    nextDecay = 0.35/(t+1.0)

    with_fx :compressor, threshold: 0.3, amp: 0.6 do
      sample nextSample, attack: nextAttack, decay: nextDecay, sustain_level:0, start: nextStart, rate: nextRate, amp: nextAmp
    end

    sleep (0.25/(t+1.0))
  end
  sleep 0.001
end