I don't have the Mosaic set, but doesn't it contain mostly jazz-oriented trio dates? What kind of "filler/novelty-type stuff" does it have, non-trio sides, or?
We just switched to a new iMac (and a broadband connection! ), so I can't pull up my database right now, but that set contains a ton of (forgettable) novelty compositions that have probably never been done by anyone since. Cute little numbers that were hip in the 40's, like what Slim Gaillard and people like that were doing. So yes, great trio, great musicians, I'm just lamenting the amount of less-than-great material they recorded. As I say, it's well-executed and fine in small doses, but I wouldn't have wanted to pay $15/$16 per disc for it, and certainly not $19/$20 like this BF set.
Come to think of it, I think the song titles are listed in one of those "Mosaic discography" threads, if you want to see what I mean.
And again, I really do love Nat (and Oscar Moore!). It's hard not to like a lot of the material based on who's performing it. There's just SO much of it in that set...
Thanks for the explanation.