Pyspeech capture some 'keywords'

import speech, pymedia

player = pymedia.Player()
player.start()

def playMusic():
   player.startPlayback('C:\MusicLibrary\song.mp3')

def command_callback(phrase, listener):
   if phrase == 'Music':     
          speech.say("Preparing music. . .")
          playMusic()

Command = speech.listenfor(['Music', 'Play music'],command_callback)

import speech, re, pymedia, os

player = pymedia.Player()
player.start()
ListSong = []
i = 0
for file in os.listdir('C:\MusicLibrary'):
   ListSong.append('C:\MusicLibrary'+'\\'+file)

response = []
response = speech.input(' ')
  
def STSong():
   global i 
   player.startPlayback(ListSong[i])

def command_callback(phrase, listener):
  if response != []:
    m = re.search("music", response)
    k = m.group(0)
    speech.say(k)
    phrase = k
    if phrase == "music":
      STSong()

AllCommand = speech.listenfor(('%s', response), command_callback)