That might be true nowadays but the audience is still pretty big. Big enough to be considered today's music. Music/genres that people mostly listen to and want to hear.

Today's music is made up of mainstream radio + more niche genres that also get quite a bit of play is my main point here.

Also, niche genres influence a good bit of mainstream music more so now than before the age of on-tap online musical whims.

Today's music is such an ambiguous term. I mean that would put Frown's music in the same category as One Direction (are they still popular?)

No way would Frown's creation get radioplay/that amount of exposure.

The more niche generals aren't as popular as you think it is though. Being inside the music nerd bubble you think that niche genres get more play than they actually do

Pretty massive bubble. I think it counts.

Here's the problem DJ. You're on a music site that's modded by an Avant-Garde obsessed individual, the sites most popular member listens to extreme metal, and the most popular artist on the site has multiple projects for different kinds of music, none of which you could call mainstream.

If I'm in a conversation with our average music listener and the person says today's music I will assume that individual means what's on the radio. But being on this site, we're not in a conversation with your average music listener. So it seems kind of ridiculous that a moderator of this site would say today's music and not mean it as in music being made/listened to today.

That's not really a problem. The question in the OP specifically addresses that point and I'm pretty sure she meant for this discussion to apply to those outside of our circle. It was meant to talk about the average casual music listener.

The music enthusiast circle is WAY bigger than you're giving it credit for. Those people don't just all of a sudden stop counting because they're not the lowest common denominator.