Try this:

http://www.mediafire.com/file/s5lypg970azzdmp/fixed_winmm_win10.zip/file

It's a fixed winmm.dll file that was used for Star Wars: Tie Fighter originally I think? It also works to get sound working on Europa Universalis 1 on Win 10.

It works for me.

It also works in the first cultures game but it doesn't repeat the music or changes it.

For some info and alternative wrapper look here:
https://steamcommunity.com/app/282010/discussions/0/1649919326332490067/#c1640912849396831466

that is not working. the game still crashes.