Sonic Pi

electro_tribal_dance.rb

# Electrotribal dance

live_loop :bass_drums do
  amp = 0.0
  if (spread 7, 8).reverse.tick
    sample :bd_haus, rate: 1, attack: 0.01, release: 0.25, amp: amp
    sleep 0.5
  else
    sample :bd_haus, rate: rrand_i(1, 3), attack: 0.025, sustain: 0.5, release: 0.1, amp: amp + 1
    sleep 0.09
    sample :bd_haus, rate: rrand_i(5, 10), attack: 0.025, sustain: 0.5, release: 0.5, amp: amp + 1
    sleep 0.41
  end
end

with_fx :reverb, room: 0.8, mix: 0.5 do
  
  live_loop :drums do
    amp = 0.0
    sample :drum_cymbal_closed, rate: 0.9, attack: 0.01, sustain: 0.01, release: 0.05, amp: amp
    if (spread rrand_i(1, 6), 8).tick
      sample :drum_cowbell, rate: [0.4, 0.8, 0.9, 1.8, 1.9].choose, attack: 0, sustain: 0, release: 0.1, amp: amp
      sleep 0.125
    else
      sample :bd_tek, rate: [3, 5, 7].choose, attack: 0, sustain: 0, release: 0.25, amp: amp
      sleep 0.25
    end
  end
  
  live_loop :drums2 do
    use_synth :pluck
    amp = 0
    if (spread 3, 8).tick
      sample :drum_cymbal_closed, rate: [3, 4, 5].choose, attack: 0, sustain: 0, release: 0.05, amp: amp
      sleep 0.25
    else
      sample :drum_cymbal_closed, rate: [1, 2].choose, attack: 0, sustain: 0, release: 0.08, amp: amp
      sleep 0.125
    end
  end
  
  live_loop :melody do
    use_synth :pluck
    amp = 0
    with_fx :echo, decay: 6 do
      with_fx :lpf, cutoff: (line 40, 130, steps: 20).tick do
        ##| play (scale :c2, :mixolydian).choose, attack: 0.0, sustain: 0.0, release: 0.05, amp: amp + 0.5
        play (scale :c3, :mixolydian).choose, attack: 0.0, sustain: 0.0, release: 0.05, amp: amp + 0
        play (scale :c4, :mixolydian).choose, attack: 0.0, sustain: 0.0, release: 0.05, amp: amp + 0
        ##| play (scale :c6, :mixolydian).choose, attack: 0.0, sustain: 0.0, release: 0.05, amp: amp + 1.5
      end
    end
    sleep 0.125
  end
  
  live_loop :deep_saws do
    use_synth :saw
    amp = 0.0
    release = 8
    attack = rrand_i(1, release / 2)
    note = [:c1, :g1, :d1, :f1, :g1].tick
    with_fx :lpf, cutoff: 50 do
      play note, attack: attack, sustain: 0, release: release, amp: amp
      play note + 12, attack: attack, sustain: 0, release: release, amp: amp
      play note + 12 * 2, attack: attack, sustain: 0, release: release, amp: amp
      play note + 12 * 3, attack: attack, sustain: 0, release: release, amp: amp
      ##| play note + 12 * 4, attack: attack, sustain: 0, release: release, amp: amp
    end
    sleep release
  end
  
end