start_note = 60
n = start_note
tone_up = true

live_loop :live do
  #use_synth :sine
  use_bpm 120
  #play n, cutoff: 40, res: 0.9, wave: 1
  play n
  sleep 0.25
  play n+4
  sleep 0.25
  play n+7
  sleep 0.25
  play n+9
  sleep 0.25
  #use_synth :dull_bell
  play n+7
  sleep 0.25
  play n+11
  sleep 0.25
  play n+7
  sleep 0.25
  play n+5
  sleep 0.25
  if (tone_up)
    n = n + 2
    if (n < start_note+8)
      tone_up = true
    else
      tone_up = false
    end
  else
    n = n - 2
    if (n < start_note-8)
      tone_up = true
    end
  end
end