My second SonicPi song from sheet music. This is a small portion of the song "Girl Anachronism" by The Dresden Dolls. Still need to work on it.

girl_anachronism.rb

# First Part

bar = 2.0
half = bar/2.0
quarter = bar/4.0
eighth = bar/8.0
sixteenth = bar/16.0

use_synth :piano

in_thread(name: :top) do
  twelth = bar/12.0
  1.times do
    sleep half
    play chord(:e5), release: twelth
    sleep twelth
    play chord(:gb5), release: twelth
    sleep twelth
    play chord(:a5), release: twelth
    sleep twelth
    play chord(:c6), release: twelth
    sleep twelth
    play chord(:e6), release: twelth
    sleep twelth
    play chord(:gb6), release: twelth
    sleep twelth
  end
  10.times do
    sleep quarter
  end

  1.times do

    play chord(:c5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:gb5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:a5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:c6), release: sixteenth, amp: 0.5
    sleep sixteenth

    play chord(:c5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:g5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:a5), release: sixteenth, amp: 0.5
    sleep sixteenth
    play chord(:c6), release: sixteenth, amp: 0.5
    sleep sixteenth
  end


end

in_thread(name: :bottom) do
  bar = 6.25

  4.times do

    1.times do
      bar = bar - 0.25
      half = bar/2.0
      quarter = bar/4.0
      eighth = bar/8.0
      sixteenth = bar/16.0

      play chord(:c4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:gb4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:a4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:c5), release: sixteenth, amp: 0.5
      sleep sixteenth
    end

    3.times do
      bar = bar - 0.25
      half = bar/2.0
      quarter = bar/4.0
      eighth = bar/8.0
      sixteenth = bar/16.0

      play chord(:c4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:g4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:ab4), release: sixteenth, amp: 0.5
      sleep sixteenth
      play chord(:c5), release: sixteenth, amp: 0.5
      sleep sixteenth
    end
  end
end



# there is one bar in between the first and second part. 
# still need to figure that out.
sleep 2.0


# second Part

bar = 2.0
half = bar/2.0
quarter = bar/4.0
eighth = bar/8.0
sixteenth = bar/16.0

use_synth :piano

define :mainFirstTop do
  play chord(:c4), release: sixteenth
  sleep sixteenth
  play chord(:gb4), release: sixteenth
  sleep sixteenth
  play chord(:a4), release: sixteenth
  play chord(:c4), release: sixteenth
  sleep sixteenth
  play chord(:c5), release: sixteenth
  sleep sixteenth
end

define :mainNextTop do
  play chord(:c4), release: sixteenth
  sleep sixteenth
  play chord(:g4), release: sixteenth
  sleep sixteenth
  play chord(:ab4), release: sixteenth
  play chord(:c4), release: sixteenth
  sleep sixteenth
  play chord(:c5), release: sixteenth
  sleep sixteenth
end

in_thread(name: :top) do
  loop do
    1.times do
      mainFirstTop
      3.times do
        mainNextTop
      end
    end

    1.times do
      mainFirstTop
      2.times do
        mainNextTop
      end
      play chord(:eb5), release: sixteenth
      sleep sixteenth
      play chord(:gb5), release: sixteenth
      sleep sixteenth
      play chord(:a5), release: sixteenth
      sleep sixteenth
      play chord(:c6), release: sixteenth
      sleep sixteenth

    end
  end
end

define :repeatsFirstBottom do
  play chord(:d3), release: sixteenth
  sleep sixteenth
  play chord(:d3), release: sixteenth
  sleep sixteenth
  play chord(:d4), release: eighth
  sleep eighth
end

define :repeatsNextBottom do
  play chord(:f3), release: sixteenth
  sleep sixteenth
  play chord(:f3), release: sixteenth
  sleep sixteenth
  play chord(:f4), release: eighth
  sleep eighth
end

in_thread(name: :bottom) do
  loop do
    4.times do
      repeatsFirstBottom
    end
    2.times do
      repeatsNextBottom
    end

    play chord(:f3), release: sixteenth
    sleep sixteenth
    play chord(:f3), release: sixteenth
    sleep sixteenth
    play chord(:f4), release: sixteenth
    sleep sixteenth
    play chord(:f4), release: (sixteenth + quarter)
    sleep (sixteenth + quarter)
  end
end