It's little tricky, and you'll have to follow these instructions EXACTLY or you might crash your build. Buyer beware:
1) If you don't have it already, download and install the free editor "Notepad++". You'll want to use it for all the editing which follows. Other editors *might* work, but there's a risk they'll insert bogus characters.
2) Using notepad++, open the mods\ebii\data\descr_sounds_music.txt file in your v2.35 build
3) Highlight lines 1374 through 1383 (these are the Ptolemaioi campaign map music file references)
4) Copy the following lines and paste them OVER everything highlighted in step 3 above:
Code:
Michael_Levy_Ancient_Harps_of_Kemet.mp3
Michael_Levy_Hymn_to_Osiris.mp3
EB_Eastern_Greek_Theme.mp3
Michael_Levy_Ancient_Visions.mp3
Mediterranean_Waves.mp3
EB_Eastern_Greek_Theme.mp3
EB_Semitic_Theme.mp3
5) If you did this correctly, EB_Semitic_Theme.mp3 will now be on line 1380
6) Save the file and close it
7) Look inside the mods\ebii\data\sounds folder and delete all eight files that end in .dat or .idx
8) Start a new campaign.
Warning - deleting the sound files can result in a one-time CTD, but it won't recur, just start up EB2 again and everything should work.
I can't promise this will be save-game compatible, but it will restore the ptolemaioi campaign map music to it's v2.3 configuration.