Just to be sure, a NES modded with the famicom expansion audio, will be able to play the enhanced music?
Of course, but I don't know if the Power Pak or the Super Ever Drive supports this mapper (VRC7) with its expansion sound.
WHAT ? 10 YEARS AND NOT EVEN A VWF ?
On the NES/FC a VWF is extremely hard to do because
1) VRAM is limited
2) Time in VBlank for transferring data to VRAM is limited
That's probably also why those chineese guys should have had a very hard time to make the game display arbitrary sinograms on screen. If they can do that though it also means a VWF is possible. But personally I kind of like good old 8x8 fonts, as long as there is a blank line between the lines (if the text is too comprimed it becomes hard to read).