Sonic Pi: Dark ambient

dark_ambient.rb

# ambient 0

live_loop :slow_drone do
  with_fx :bitcrusher, cutoff: 40 do
    with_fx :gverb, room: 40 do
      with_fx :echo, decay: 20 do
        with_fx :echo, decay: 1, mix: 1 do
          with_synth :saw do
            play (scale :c2, :major_pentatonic).choose,
              amp: 1,
              attack: 0.5
          end
        end
      end
    end
  end
  sleep rrand_i(2, 4)
end

live_loop :fast_drone do
  amp = 1
  with_fx :bitcrusher, cutoff: 70 do
    with_fx :gverb, room: 10 do
      with_fx :echo, decay: 3 do
        with_fx :echo, decay: 1, mix: 1 do
          with_synth :square do
            play (scale :c2, :major_pentatonic).choose,
              amp: amp,
              attack: 0.6,
              release: 0.25,
              sustain: 0.5
          end
        end
      end
    end
  end
  sleep rrand(0.5, 2)
end

live_loop :slow_metro do
  sleep 0.5
end

live_loop :dark do
  sync :slow_metro
  amp = 3
  with_fx :bitcrusher, cutoff: 90 do
    with_fx :echo, decay: 10, mix: 1 do
      with_fx :reverb, room: 1, damp: 0.8 do
        sample :ambi_glass_rub,
          rate: 0.5,
          amp: amp,
          attack: 0.6,
          decay: 0.5,
          release: 0.5,
          sustain: 1.5
      end
    end
  end
  sleep 4
end

live_loop :fast_metro do
  sleep 0.125
end

live_loop :plucking do
  sync :fast_metro
  use_synth :pluck
  amp = 1
  with_fx :bitcrusher, cutoff: 90 do
    with_fx :ping_pong, phase: 0.5 do
      with_fx :echo, decay: 2.5 do
        with_fx :echo, decay: 2 do
          with_fx :echo, decay: 1.5 do
            with_fx :echo, decay: 1 do
              with_fx :tremolo, phase: 0.2 do
                play (scale :c3, :major_pentatonic, num_octaves: 3).choose,
                  amp: amp,
                  attack: 0.05,
                  decay: 0.25,
                  release: 0.05,
                  sustain: 0.05
              end
            end
          end
        end
      end
    end
  end
  sleep 2
end

Had a play with this - awesome stuff!! Thanks for sharing