This is an impressive port. Besides certain instruments (The string and I believe it's a tambourine? Or maybe a cymbal?) being just slightly shorter than the N64's rendition, this is extremely faithful to the original, right down to the samples.
This is THE most impressive song in SMW Central. And this is SMW custom music on Super Nintendo. It's an impressively accurate SNES version of the original N64 song. It would've been cool if you had submitted 2 versions, 1 with bells and 1 without, since the bells are cool in my opinion and only add to the wonder.