20160421_sonic_pi_2.rb

live_loop :a do
  sample (ring :perc_swash, :perc_till).tick
  sleep 0.5
end

live_loop :b do
  #sync :a
  play (ring 38, 45).stretch(4).tick, release: 0.2, amp: (line 0.2, 2, steps: 16).mirror.look
  sleep 0.125
end