void FunctionA()
{
	//Code here; read file containing sounds
	

	FunctionB();
}

void FunctionB()
{
	if(runnow)
	{
		//Pick a random song from the file
		//Play the song

		fsystem->update();
		{
			//Set Volume

			//Get song length (in miliseconds)
		}
		FunctionB(); //This should run after 'song length' above
	}
//More code; should still run and not only after X miliseconds as Sleep(); would do
}