Function Music.this
Constructs a Music from a vanilla Mix_Music* from bindbc-sdl
					
			this
			(
			
			  sdl_mixer .Mix_Music* mixMusic,
			
			  bool isOwner = true,
			
			  void* userRef = null
			
			);
					
				
			Parameters
| Name | Description | 
|---|---|
| mixMusic |  the Mix_Music pointer to manage | 
| isOwner |  whether the instance owns the given Mix_Music* and should destroy it on its own | 
| userRef | optional pointer to maintain reference link, avoiding GC cleanup |