SMS, Gmail, Telegram and other apps (like games) notifications always interrupt music from every player app in the playstore, this is even more annoying when you are listening to FM Radio, where it takes a few seconds to re-tune. Most of them don't have any "focus" settings, and if they have they don't work like they should. Contrary Whatsapp notifications DO NEVER interrupt music or decrease volume, that's the behavior I want for every notification.
I tested it on: Stock 2.3.6, 4.1.2, HarshJelly 4.1.2, CMx 4.1.2, CM11 4.4 (by tC).
The workarounds suggest to put the phone in silence or vibrate mode, that isn't what I want, clearly.
So, does anybody know how to help me to be a happier person?