I found this article, it seems forward enough, I just don't know enough about directives or calls to figure it out. Hope someone can help getting it to work in Aurora :)
http://www.riemers.net/Tutorials/DirectX/Csharp2/tut17.php
Use MCI if you want to play MP3's.
Your won't have much luck converting C#.NET code to anything else but C# ;).