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Generate sounds

Chord progressions

The previous example was playing only in C minor. Here’s an example that uses a ring of chords that all the loops use. All the loops will play around the same chord and one loop is changing the chord for all. It’s getting quite complex, but check it out for inspiration if you wish. You can use the chord progression charts for choosing nice chords if you wish.

chords = [(chord :C, :minor7), (chord :Ab, :major7), (chord :Eb, :major7), (chord :Bb, "7")].ring
c = chords[0] # take the first chord of the ring and save it to a variable
# this is going to be used in all the live_loops. It will be ticked by the :bass loop

live_loop :melody do
  use_synth :blade
  r = [0.25, 0.25, 0.5, 1].choose
  play c.choose, attack: 0, release: r
  sleep r
end

live_loop :keys do
  use_synth :blade
  play c
  sleep 1
end

live_loop :bass do
  use_synth :fm
  use_octave -2
  3.times do
    play c[0] # play the first note of the chord
    sleep 1
  end
  play c[2] # play the third note of the chord
  sleep 0.5
  play c[1] # # play the second note of the chord
  sleep 0.5
  c = chords.tick
end