hello_sonic_pi.rb

use_bpm 100

live_loop :pad do
  chords = [
    [:a2, :g3, :c4, :e4],
    [:d2, :f3, :c4, :e4],
    [:g2, :f3, :a3, :d4],
    [:c2, :g3, :d4, :e4]
  ]

  use_synth :dsaw

  with_fx :lpf, cutoff: 70 do
    with_fx :reverb, room: 0.5, mix: 0.8 do
      chords.each do |chord|
        play chord, attack_level: 0.3, decay: 4, release: 0, amp: 4
        sleep 4
      end
    end
  end
end

live_loop :bass do
  use_synth :tri
  with_fx :lpf, cutoff: 60 do
    ([:a2, :d2, :g2, :c2]).each do |note|
      play note, release: 2, amp: 4
      sleep 3.5
      play note, release: 0.5, amp: 2
      sleep 0.5
    end
  end
end

live_loop :hihat do
  7.times do
    sample :drum_cymbal_closed, amp: 0.2
    sleep 0.5
  end
  8.times do
    sample :drum_cymbal_closed, amp: 0.2
    sleep 0.0625
  end
end

live_loop :kick do
  sample :bd_tek, amp: 8
  sample :bd_haus, amp: 8
  sample :drum_bass_hard
  sleep 1.5
  sample :bd_haus, amp: 2
  sleep 2
  sample :bd_haus, amp: 2
  sleep 0.5
end

live_loop :snare do
  sleep 1
  with_fx :reverb, room: 1 do
    with_fx :hpf, cutoff: 50 do
      sample :drum_snare_soft, amp: 2
    end
  end
  sleep 2
  sample :drum_snare_soft, amp: 2
  sleep 1
end

live_loop :melody do
  use_synth :piano

  with_fx :reverb, room: 0.2, mix: 0.5 do
    with_fx :echo, mix: 0.1 do
      4.times do |i|
        play_pattern_timed [:a4, :b4, :c5, :e5], 0.25, decay: 0.8, amp: 0.4
      end
      4.times do |i|
        play_pattern_timed [:f4, :a4, :c5, :e5], 0.25, decay: 0.8, amp: 0.4
      end
      4.times do |i|
        play_pattern_timed [:f4, :a4, :b4, :d5], 0.25, decay: 0.8, amp: 0.4
      end
      4.times do |i|
        play_pattern_timed [:e4, :g4, :b4, :e5], 0.25, decay: 0.8, amp: 0.4
      end
    end
  end
end