Song player

-- Music/song player v3
--Made with some help from freak
-- Dangranos helped with v2, which this is
-- based off
-- All of this made (An re-wrote) by
-- Luker (luker2009)
args = {...}
side = args[2] or "bottom"
run = true
if args[1] == nil then
 print("Please put a file to play!")
 run = false
else
 file = args[1]
end
inb = peripheral.wrap(side)
counter = fs.open(file, "r")
count = 1
linec = counter.readLine()
while linec do
 linec = counter.readLine()
 count = count +1
end
lines = count
a = 0
song = fs.open(file, "r")
for i = 1, lines do
 a = a+1
  if a == 1 then
   instr = tonumber(song.readLine())
  elseif a == 2 then
   note = tonumber(song.readLine())
  else
   wait = tonumber(song.readLine())
   sleep(wait)
   inb.playNote(instr,note)
   a = 0
  end
end
song.close()