GB Player music not being the same as the original tracks. The instruments are too high quality, and there are some changes here and there... Ah well, guess it was too much effort to replicate the old chiptunes.
I think it's quite relaxing, actually.
It's a remix of the Mart theme which has been used ever since Ruby/Sapphire. (I think, at least it appeared first there.)One thing I noticed: the Mart theme is different. In C/S/G, the song that was for the location was the song in the mart. In HG/SS, they replaced it with some crappy song that doesn't even sound good! That was a real let-down, as that was a really cool thing.
I think it's quite relaxing, actually.