Hello Flix, thx for the answer I don't know if this is related to your mod, or the community patch, I haven't tried to play the game without the two. I suppose my game was crashing like crazy because I made a lot of manip into the files, trying everything I found on the internet to stop this behavior.
Eventually, I made a new clean install, deleted everything related to sacred 2 in folders and registry, applied the community patch, the mod manager and enabling the mod, and the game is much more stable now.
Crashes occur around 1H of play, but there is this special crash that I think anyone can replicate: trying to sell certain gold (amulet, sword, mace, doesn't matter) items via the bag, not to a merchant, will make the game crash everytime. I don't know what is causing this.
For the music freeze, I'm not 100% sure, but it often appeared when using the Revive skill, you can still play, but the music just loops 2 sec of the same sequence. Had to kill the game in the task manager, as it won't exit by itself. I'm not sure what is the cause, maybe too many sound effects at the same time. With my first necro, I went for quantity of minions, and then the crashes begun. For my 2nd play with another necro, I went with quality (only 2 skels and 2 mage skels) and I only had once the 2sec music loop freeze.