ZDoom

(I hope this is the right sub-forum)

This little PK3 contains the bare minimum SNDINFO lumps that make GZDoom make use of the remix tracks which are inside the rerelease's extras.wad file. The tracks have the H_ prefix as opposed to the usual D_ so just loading extras.wad by itself won't do anything.

This was tested and works with Doom, Doom 2, TNT, and Plutonia IWADs.
This was also tested with the rerelease's masterlevels.wad, nerve.wad, and iddm1.wad PWADs.
Load order matters for these PWADs so make sure the PK3 is loaded after one of these. Use Doom2 as the IWAD.

Spoiler: More details

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Technically speaking there's one sndinfo.txt in the root directory. This is Doom 1 stuff that doesn't conflict with anything else. While all the Doom2-based IWADs get filtered sndinfos -- they can't peacefully coexist with each other. This had to be done so TNT and Plutonia use the right tracks on the right maps. And TNT's own music (which isn't reused from Doom and Doom 2) isn't replaced.

EDIT: Removed old attachment "gzd-extras-sndinfos.pk3" - replaced with the "v2" version.

Today I learned two things. First, that the old version wouldn't run if choosing DOOM 2: KEX Edition as the IWAD.
And secondly that $musicalias assignments can be undone.

So I'm releasing a v2 version, attached to the first post. This will work with the Doom 2 KEX Edition.

Spoiler: More details

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Being able to undo $musicalias assignments means I can tell gzdoom which TNT tracks are not to be replaced. This means only 2 filter folders, one for TNT and one for Plutonia - the rest can go in the root sndinfo file - also smaller PK3 file size.

This is neat, thank you