Yes, MoodLogic implements your "requested features list" so closely, that when I was reading your first post, I was thinking that you were just asking for MoodLogic to be implemented on the Empeg. I thought "Hmmmm, I wonder why he's avoiding using the word 'MoodLogic.' Is it because he doesn't want to be attacked?" Perhaps you read about MoodLogic long ago and it stuck in your mind.

Anyway, MoodLogic with the Tivo Home Media Option lets you stream these sorts of auto-generated playlists to your TV. But HMO is a week substitute for your Empeg wired to your home stereo in lots and lots of other ways. (But I do both, because that Mood and BPM feature is really cool sometimes.)

But the MoodLogic people seem to have been missing in action for a long time.
I'm not sure their database gets updated too much any more, and their "coming soon" features haven't materialized in the past few years.

Still what have you got to lose by trying the free trial, especially if you have a Tivo, too. (Warning: their free trial period is really short, a week or so. So make sure you categorize all your stuff quickly so you can get a fair assessment.)

And as you pointed out, using this on your Empeg currently means auto-generating playlists a few times a week and then downloading them -- something I've never bothered with because (a) I can just do it over the Tivo when I'm at home, and (b) my Empeg isn't in my car right now.