This is a HiDef-derived Soundfont specifically geared towards the SC-88Pro MIDIs from the recent Pokemon Emerald source code leak, MIDIs which are far more accurate than even ROM rips, especially the instrument choices. The drums are from Charm by Strix Soundfont Team, with a simple re-arrangement of a few samples to make them work properly. The GB Channel 3 waves are from GXSCC, and were picked to specifically match the waves that RSE and FRLG use, except that GXSCC is do...
Soundfont and midi ripped straight from the video game using VGMTrans (GBAMusRiper wasn't able to rip it). Able to be used with any DAW that plays soundfonts. If you're wondering, I did check to see if the PSX version could be ripped, but no. It just gives me streamed (.wav) versions of the songs.
There are PSG/NES instruments in the game, but VGMTrans wasn't able to rip them. Interestingly, "A Day in Agrabah" uses an entirely different sound set than the rest of the main songs. The (Original) .dls files are what VGMTrans gave me, so I left them in (If you wanted to blow out your ears for any reason).