With the recent reveals and whatever I went to the smash bros. site. I had heard about some music compilation they were doing for registering the games - lo and behold there are a link on the main page for it. Anyway, click a bit further and you'll get to a couple samples of tracks with a list of people working on the soundtrack.

There seems to be a bunch of people asked to work on the game who have no direct relation to any characters or games featured in these latest smash bros. For instance, Masashi Hamauzu (known predominantly at the moment for the Final Fantasy XIII games) or Motoi Sakuraba known for the Tales and Dark Souls soundtracks. Here's the list on the site (along with those music samples).

Unsurprisingly, most of the names are from Bandai Namco or Nintendo (those directly developing the game) or from people who composed music for games featured in the new Smash Bros. (e.g. ACE who composed some of the music for Xenoblade Chronicles); but why do you think there are so many mentioned who don't have a direct link to specific music of games featured?

It might also be interesting that the Wayback machine seems to show that on the 25th of August (prior to the Shulk and Xenoblade Chronicles stage reveals) this page was up with mentions of ACE (in relation to Xenoblade Chronicles) having worked on something for the soundtrack. I highly doubt this would allude to possible reveals later but it is certainly possible.

-Edit- I should also say that Hamauzu seems to have overseen the song for the Kirby Songc alled "Green Greens Ver 2" and the top of the page - but I can't find any relation to Kirby. So I'm not sure why?

That's a pretty impressive line-up. I recognize some of the names on that list. This whole Nintendo/Namco relationship has been interesting, and I'm glad to see a lot of Namco composers on the list because I think they do pretty well with the music in their games. Nintendo's really going all-out for this thing, huh?

That's cool. I'm going to get a Wii U very soon; perhaps in a few days.