The Mac OS X provides a command line music player if you do not want to use iTunes or any other music player, which is very easy to use. Just supply the music file (such as mp3,wma , etc) located in a directory "afplay" command as below.
afplay /Users/user/Music/yourmusic.mp3
afplay -h will give you all the other options available with the command.
afplay /Users/user/Music/yourmusic.mp3
afplay -h will give you all the other options available with the command.