Ok so erlier today (as of when this was posted) I was playing around with one of the many soundfonts that I have downloaded. The soundfont in name here was the '1930-1970 Music Soundfont' which I loaded into my midi player software 'Midi Player 6.5' but when I went to play At Doom's gate (E1M1) midi file I hit a problem. I'm no expert but I already have a couple possabilities as to why I was even faced with my problem in the first place; but I better tell you what my problem is before I start talking about the reasons why. So the problem I had was that when playing the E1M1 midi file I was hearing only the slap bass 2 sound being used (this soundfont does come with other sounds too) but what else was odd was the fact that the slap bass sound was only playing out of 2 channels with no other instrument heard playing (not even drums). Whilst I was in the middle of writting this post I checked with CoolSoft VirtualMIDISynth - 2.14.1 to see what its built in midi mixer would report & wound't you know it, but the mixer reported all the sounds correctly where channel 1 was being reported as distortion guitar, channel 2 as overdrive guitar, channel 3 as plucked bass & channel 10 as drums (channel 10 always gets used for drums) but the case was that channel 1 (the distortion guitar channel) was playing that same slap bass 2 and same happened on channel 2 (the overdrive guitar channel) but for both channel 3 (the plucked bass channel) & channel 10 (the drum channel) I was getting feports of nots being present but no instrument was played for channel 3 and 10.

My reasoning as to why all this is even happening is because whoever uploaded this soundfont did not finish it therefor the mapping being wrong and it being unfinished might be the couse of why some instruments where not there yet.
My second reason for why is that whoever made this soundfont delibartly messed up the sound mapping for whatever reason (this one seems less like than the first why).

So I would like someone who could fix this soundfont for me as I do not know how to do so & for them to also add in any missing sounds from this soundfont, when it comes to the drums I would like them to be of high quality & dry (meaning no echo/reverb on them).

The soundfont & two test midi files have been uploded over on the Internet Archive, so here is the link: https://archive.org/details/1930-1970-music-soundfont

So please could someone fix it for me, thank you very much