When my Garmin detects an "incident", I want it to pause whatever music player it's aware of (phone or built-in) to alert me that something is wrong and deserves my attention.
Just went running with my Forerunner 645 Music. I was in the middle of a Garmin Coach workout when my 645 decided I had an incident. I didn't notice until I glanced down about a half mile later. I had tones and vibration turned off because they usually go off for minor stuff like I touched a button or I ran another mile (can I shut off auto-lap too?). If my music had stopped, I would have glanced at my phone and watch and cancelled the incident and gone on with my workout.