It might just be an issue of a missing backslash when typing the path.
Say you type the directory path as "C:\mypath".
Then you try to play a file:
path & "music1.mp3"[/code:oq8iyssp]
The result will be a wrong path "C:\mypathmusic1.mp3" so no sound will play.
Just be sure to include a trailing backslash to the path and it should work.