Music

s = peripheral.wrap('left')
function playnote(s,channel,note, time)
  local f = 0
  if     note == 'c' then f = 261.63
  elseif note == 'c#' then f = 277.18
  elseif note == 'd' then f = 293.66
  elseif note == 'd#' then f = 311.13
  elseif note == 'e' then f = 329.63
  elseif note == 'f' then f = 349.23
  elseif note == 'f#' then f = 369.99
  elseif note == 'g' then f = 392.00
  elseif note == 'g#' then f = 415.30
  elseif note == 'a' then f = 440.00
  elseif note == 'a#' then f = 466.16
  elseif note == 'b' then f = 493.88
end

s.shutdown()