Well "Vs. Queen Metroid" is quite a good song too, the rest are just almost non-melodic, more atmospheric tracks wich i liked.
Then yeah, Metroid is kinda bad represented music-wise, i mean, the lack of Lower Norfair and Brinstar Red bothers me so much.
If we don't get the Lower Norfair death march this time around, I would be very surprised. It's such an epic and effective track in Super Metroid...encapsulates the feeling of Lower Norfair overall while also getting you absolutely pumped for your clash with Ridley, which you KNOW is coming up at that point. It would be a shame if it still wasn't available to us. Even the version in Nintendo Land is friggin' amazing! Actually, the whole Metroid Blast soundtrack from N-Land is great overall. I have no idea what tunes we'd get from Other M, since the OST for that game is largely forgettable at best...with the only good, standout track being the rendition of 'Vs. Ridley'...so I'm certain that will appear as a track for Pyrosphere.
The Norfair stage in Brawl was sort of strange...it was lava-centric, but it's also not as epic-looking as Pyrosphere seems to be. I actually can't really picture the Lower Norfair theme being played on it, but with Pyrosphere I have no troubles. Here's hoping that Sakurai feels the same. I agree that Red Brinstar needs to be in as well...maybe for another Metroid stage with a more suitable setting for it, assuming we get one of course.
I guess if we're getting different stages between the versions...would that mean that we're also getting different musical compositions between them as well? That would be interesting...and would only further help me to justify buying both versions, haha.
...
Come to think of it, they're really setting this game up for Ridley's arrival. This is how I'm seeing things currently:
We had one lava stage in Brawl (Norfair) in which the music was fairly general: A really awesome remix of the old Norfair theme (which I sincerely hope makes a return), the Metroid main theme, the Metroid ending music, and the always-epic Space Warrior (as well as those two random ones from Golden sun and...I forget the other). 'Vs. Ridley' was allocated to Frigate Orpheon of all things. No mention of Lower Norfair, despite its presence in Super Metroid AND Metroid Prime which had some decent representation in Brawl.
Now, we have ANOTHER lava stage from the Metroid series, but it's one that's taken directly from a climactic point in Other M where Samus battles Ridley. 'Pyrosphere' could have been anywhere in the sector, but that particular, important setting was chosen. The main theme people associate with that room is 'Vs. Ridley', of course...so that's probably a lock for the stage's soundtrack selection. We haven't heard the Lower Norfair theme in any Smash Bros. game yet, and since the soundtrack will certainly not be all the same tracks from Brawl, it's very likely to debut in SSB4...PARTICULARLY after we had a previous lava stage in Brawl with that particular theme absent. That track is also highly associated with Ridley, almost as much as his battle theme...so both would really be no-brainers if he were playable.
We have NO evidence whatsoever of any stage hazards on Pyrosphere. No rising lava, no creature attacking the stage, and it's been shown from almost every damn angle. Heck, there's even that one shot down the long tunnel, as well as the one that looks below the edge of the platform and down into the lava, and we've seen no sign of Ridley OR altered lava height. At this point, I wouldn't be surprised if Pyrosphere is meant to be a straightforward stage with no hazards (unless we have the option to turn hazards off or something). It's almost like Sakurai is being like 'See guys! There's NOTHING!' Mother Brain has been shown as an Assist Trophy, which I figure significantly reduces the chances of him being included in that form as well.
...I think there's a LOT of evidence pointing towards Ridley being playable, even if some of it is a bit hypothetical. I'm not just saying this because I want him in...there are just many, many hints towards it that are hard to ignore.