Technical data regarding music in Doom 2 bothers me

So there's something regarding the files of the music in Doom 2 that seem to really bother me for some reason. Most of the music have duplicates of each other, and the duplicates are mostly the same, except for a different filename (obviously) and slightly different-sounding. Why do the "duplicates" exist? Why not use the same music track more than once?

45 minutes ago, crazyflyingdonut said:

So there's something regarding the files of the music in Doom 2 that seem to really bother me for some reason. Most of the music have duplicates of each other, and the duplicates are mostly the same, except for a different filename (obviously) and slightly different-sounding. Why do the "duplicates" exist? Why not use the same music track more than once?

To make modding easier. For example, it lets you change the MAP07 music (D_SHAWN) without changing MAP19's and MAP29's music too.

I'm not sure it was id software's intent. I figure they just did it that way to make it easier for them to rearrange the songs.

Different sounding? Never knew that.

There are actually minute differences between some of the entries, most notably how D_DDTBLU uses a different (more polished) version of the track than D_DDTBL2 and D_DDTBL3.

Wow really? Never knew that @Jimmy. Learned something today.

Yep, I always type idmus08 on those maps to avoid the irritating broken loop on map14 and map22

i haven't had the broken loop happen to me in ages; it does occur, but it doesn't permeate into the loop now. i know for sure it happened back when i was playing the game from the Doom Collector's Edition, but i assume that's just part of the Doom95 port it using being a piece of ass.