For most of those tracks, yes. But it's not as simple as you think. The MIDI files imported with Mod Plug Tracker usually require some degree of manual optimisation to be correctly converted to SMPS; sometimes it's as simple as moving some notes around, but sometimes entire channels have to be rewritten, when the MIDI has 20+ polyphony notes and I can use only 9 at most. In some cases I spent 2 or 3 hours organising the channels in the best way, deciding what should go on PSG and what on FM, and so on. Sure, you can drop a MIDI in Mod Plug Tracker and save it as XM without caring, but the end result is likely to sound like crap (which is what happened to 90% of the other people who wanted to add custom music to their hacks). And yes, I used "one of these SMPS tools", namely
the one I made
My
soniNeko hack was actually meant to be a simple music hack with no additional features, just to be used as a showcase of what my converters could do since music hacking was quite primitive before (there was Sonic QX but its results were questionable), but I later ended up adding other stuff to it. Some of the songs were converted from games which used the Cube/Iwadare sound driver, with another (private) converter I wrote, with Wiz's help.