PSX and Doom 64 plays MIDI instead of their original soundtracks

[planetgummy]

I tried playing both PSX Doom CE and Doom 64 through PortaDoom. However, when going in-game, they appear to be playing some sort of MIDI soundtrack that I think is trying to imitate the Aubrey Hodges soundtrack. The only instance where the original PSX soundtrack appears so far is the PSX Doom menu. In game, and in the Doom 64 menu/intro, they appear to be playing the MIDI songs instead

I'm not sure if it's because it's not detecting my Steam install of Doom/Doom 64 (I did copy the wads over especially to patch Doom 64) but I'm not sure why this happens