Comment 1 for bug 1623166

I think the problem stems from the difference in behaviour in the first place. If we have to modes - "mute" and "silent", we need to let the user know that one silences notifications and the other mutes multimedia. And there needs to be visual representation of the two, and UI to change either.

How do you silence alarms is one more question to answer, but I think it's more to do with inhibiting interruptions altogether rather than just making them quiet.