たのしい winsound モジュール。play('ccggaagrffeeddcr')。

mml-modoki.py

import time
import winsound

_table = { 'c': 523, 'd': 587, 'e': 659, 'f': 698, 'g': 784, 'a': 880, 'b': 988 }
_dur = 60000 // 80

def play(s):
  s = s.lower()
  for c in s:
    if c not in 'cdefgabr':
      continue
    if c == 'r':
      time.sleep(_dur / 1000)
    else:
      winsound.Beep(_table[c], _dur)

def main(s='ccggaagrffeeddcr', *_):
  play(s)

if __name__ == '__main__':
  import sys
  main(*sys.argv[1:])