[pygame] What is wrong with this

[Jason Coggins]

I am trying to create a very simple program that makes a list of the music 
files in a folder, sorts the files into alphabetical order and then plays each 
file in the folder.  The program below plays the first file in the folder and 
then freezes without playing any of the remaining songs.

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import pygame, os

def findFiles(location):
    files = []
    for item in os.listdir(location):
        files.append(item)
    files.sort()
    return files

def playMusic(music)
    clock=pygame.time.Clock()
    pygame.mixer.music.load(music)
    pygame.mixer.music.play(0, 0.0)
    while pygame.mixer.music.get_busy():
        clock.tick(300)
    return

def main():
    pygame.init()
    pygame.mixer.init()
    destinationPath = "/home/owner/Desktop/playList"
    os.chdir(destinationPath)
    playList = []
    playList = findFiles(destinationPath)
    for item in playList:
        playMusic(item)

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Jason