I found another idea that might be more of a help than my first reply
I have a program called media player classic.
Download something called K-lite codec pack and it should come with media player classic
It is free and you should find it pretty easy on Google
It will probably ask you lots of question in the installation process
When it is done installing open media player classic.
Click view
Click options
When it loads up the option page got to "Output" under the "playback" section
Click on "DirectShow Audio" and select the sound system you want to play the music.
Click Apply
I hope this helps
Good luck