Because when playing music, you can't change ringtone volume (and they *are*, even today, different), they are two very separate things IMO.
As I described, the volume slider as we have it today, should not really be a volume slider at all, but rather a profile-change-slider, including "silent", "quiet" and a handful of volumes for the ringtone. The hardware buttons should totally follow the currently active sound, falling back to ringtone volume if nothing's playing.
Because when playing music, you can't change ringtone volume (and they *are*, even today, different), they are two very separate things IMO.
As I described, the volume slider as we have it today, should not really be a volume slider at all, but rather a profile- change- slider, including "silent", "quiet" and a handful of volumes for the ringtone. The hardware buttons should totally follow the currently active sound, falling back to ringtone volume if nothing's playing.