1.- subscribe into some mod (b41) true music addon. Example:

True Music Addon: metal

Optional any other True Music Addon but change 3551667460 for your choosen mod number id

2.- after download search the truemusic_addon directory (3551667460 and truemusic_addon directories is only for this example but you can find almost the same for any other true music addon)

C:\Program Files (x86)\Steam\steamapps\workshop\content\108600\3551667460\mods\truemusic_addon

3.- Create here 2 new directories called

common
42

4.- Copy and paste all (less the new directories, common and 42) in the directory called 42

the media folder
the mod.info file
the poster,png file

5.- Go to
C:\Program Files (x86)\Steam\steamapps\workshop\content\108600\3551667460\mods\truemusic_addon\42\media\lua\server\Items
and replace this 5 words (in all cases) in the files: TCGLoadingTCBoombox.lua and TCGLoadingTCVinylplayer.lua

WardrobeManClassy = WardrobeClassy
WardrobeWomanClassy = WardrobeClassy
WardrobeMan = WardrobeGeneric
WardrobeWoman = WardrobeGeneric
BedroomSideTable = BedroomSidetable

6.- Go to
C:\Program Files (x86)\Steam\steamapps\workshop\content\108600\3551667460\mods\truemusic_addon\42
and modify the new mod.info file.

Replace require=truemusic
for this require=\truemusic

finally, change region file into UTF-8 only for this example (is a russian mod).

7.- Save all and is all. Now you can find and use in B42 too.

*** Reference file ***

C:\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\media\lua\server\Items\ProceduralDistributions.lua

*** Suggestion ***

Use noteplus or visual studio or something like this for easy edit files.