20160306_sonic_pi.rb

use_synth :piano

live_loop :a do |i|
  play (ring 60, 62, 64, 60).tick(:a), pan: -1 if i < 64
  play (ring 64, 65, 67, nil).tick(:b), pan: -0.5 if i > 7 and i < 72
  play (ring 67, 67, 64, 60).tick(:c), pan: 0.5 if i > 15 and i < 80
  play (ring 62, 55, 60, nil).tick(:d), pan: 1 if i > 23 and i < 88
  stop if i == 88
  sleep 0.5
  i += 1
end