notification and gps sounds while playing music...mod?


Aug 9, 2011
as we all know, notification and gps alerts stop any playing music, the alert plays, then the music fades back in. is there any way to configure or mod miui so that the music would be faded down, say by 50%, then faded back up to 100% instead of having it cut out completely on these alerts? this is something i've wanted from android since day one but i've been unable to find a workaround...