But the volume not updating properly isn't what you were asking about.
Tags is pretty much families for sounds. You can add more than one tag to a sound using '&'.
What I'm saying is that if you use, global, local or instance variables will not update the sound volume, it will only setup the volume for sounds triggered after the setup... You can call global volume as master volume, it's only a name, but the function I was asking for is that to update the sound volume of all sounds, running or not, the same for the family.
With a specific family would be easier than setup using tags and &..&..&..&..&..&..& when you're dealing with thousand of sounds, also, easy to import or clear a sound on the list.