MUISC

s = peripheral.wrap('left')
function playnote(s,channel,note, time)
  local f = 0
  if     note == '2c' then f == 65.41
  elseif note == '2c#' then f = 69.30
  elseif note == '2d' then f = 73.42
  elseif note == '2d#' then f = 77.78
  elseif note == '2e' then f = 82.41
  elseif note == '2f' then f = 87.31
  elseif note == '2f#' then f = 92.50
  elseif note == '2g' then f = 98
  elseif note == '2g#' then f = 103.83
  elseif note == '2a' then f = 110
  elseif note == '2a#' then f = 116.54
  elseif note == '2b' then f = 123.47
  elseif note == '3c' then f = 130.81
  elseif note == '3c#' then f = 138.59
  elseif note == '3d' then f = 146.83
  elseif note == '3d#' then f = 155.56
  elseif note == '3e' then f = 164.81
  elseif note == '3f' then f = 174.61
  elseif note == '3f#' then f = 185
  elseif note == '3g' then f = 196
  elseif note == '3g#' then f = 207.65
  elseif note == '3a' then f = 220
  elseif note == '3a#' then f = 233.08
  elseif note == '3b' then f = 246.94
  elseif note == '4c' then f = 261.63
  elseif note == '4c#' then f = 277.18
  elseif note == '4d' then f = 293.66
  elseif note == '4d#' then f = 311.13
  elseif note == '4e' then f = 329.63
  elseif note == '4f' then f = 349.23
  elseif note == '4f#' then f = 369.99
  elseif note == '4g' then f = 392.00
  elseif note == '4g#' then f = 415.30
  elseif note == '4a' then f = 440.00
  elseif note == '4a#' then f = 466.16
  elseif note == '4b' then f = 493.88
  elseif note == '5c' then f = 523.25
  elseif note == '5c#' then f = 554.37
  elseif note == '5d' then f = 587.33
  elseif note == '5d#' then f = 622.25
  elseif note == '5e' then f = 659.25
  elseif note == '5f' then f = 698.46
  elseif note == '5f#' then f = 739.99
  elseif note == '5g' then f = 783.99
  elseif note == '5g#' then f = 830.61
  elseif note == '5a' then f = 880.00
  elseif note == '5a#' then f = 932.33
  elseif note == '5b' then f = 987.77
  end
  print(f..' '..note)
  s.start(channel,f)
  sleep(time)
end

function playnotes(s,channel,notes,time)
  for i,j in pairs(notes) do
    playnote(s,channel,j,time)
  end
end
playnotes(s,1,{'3g','3g','3g','3d#','4a#','3g','3d#','4a#','3g'},0.25)
s.shutdown()
print(s.shutdown())