Minor update to the SoundCloud link. Adjusted some instruments and whatnot
This is certainly well-composed Fragmare, but the problem with this song is that the waveforms you've used are just too soft, that's why it doesn't have the same 'punch' that the Super Nintendo version has... I've noticed you're using all 6 channels for the intro part, but I think you could achieve a much better effect with only 3 or 4 channels if only you were using a better waveform and took some liberties with the composition instead of sticking to the SNES version as closely as possible...
Here's an example of what you could have done to make it sound better in the intro: http://sta.sh/018ppi45vunl
Instead of playing the same note on every channel only slightly different, you could play the same note in different octaves and at different phases and use a 4th channel to do a delay/reverb effect, and it already sounds much stronger that way!
Of course the intro isn't the only part that's a little weak, but the other parts would sound quite a bit better if only you used better waveforms, some that aren't so soft you know?
http://www.deflemask.com/forum/show-off-your-work/official-wavetable-thread/msg3960/#msg3960
^Check out this thread on the Deflemask Forum, SpoonyBard posted some awesome wavetables in there! The Falcom waves and the Sakimoto Waves are must-haves, try experimenting with those and see what you can do ^^
What's funny is, I copied the waveforms straight from the SNES channel rips, but I didn't like how noisy and grindy they sounded coming out of the PC-Engine, so i softened them and mellowed them out a little bit. This might be a difference in taste, because I actually had it sounding more noisy in an earlier WIP version, but decided I didn't like how that sounded... I dunno, when I listen to the SNES track, I don't get an noisy or grindy impresession from any of the instruments, maybe that's just me. I wanted to make the PC-Engine version sound smooth, like butter, because when I listen to the SNES track, to my ears anyway, it has a very soft, mellow tone overlaid onto a very deep bass and strong, snarey drum track... that's what I was going for here.
I like your technique with the [E5xx] command, though. Gives quite a nice slightly "off-kilter" sound to it, that's quite appropriate.
That bassy note is so rough. Despite that, some of your other instruments are spot on. Very impressed. There are some tiny timing issues, however, with one particular note sequence.
What's the time mark? You have no idea how OCD i am about getting the timing perfect. Everything *should* be nailed, but give me the time mark of the suspected offending note(s) and i'll check again.
One thing I will mention is that within the source material there were what sounded like about 2 or 3 sour notes. I actually left them in the mix here, for the purpose of getting something closer to 1:1, note for note to the SNES version. I might remove them from a future revision.