Windows 64 compile

Actually, I did it just for fun, to verify if a 64bit compilation of MuseScore was possible under Windows :-)
I started trying to obtain a 32bit compilation of MuseScore under Linux 64bit, following #20743: [Linux] Error when launching a nightly build: binary file: it was working up to the linking point of mscore, since I could not figure out how to tell cmake or pkgconfig to use the 32bit ogg and vorbis libraries instead of the 64bit ones. I then noticed in CMakeLists.txt that in Windows the way these dependencies are set is different, so I tried the 64bit compilation in Windows to learn how things change in 32bit and 64bit compilations.

One possible answer to the benefit of a 64bit compiled binary instead of the 32bit one is for example, as already pointed out by someone else in the developer mailing list, the ability to load really heavy soundfonts (e.g. sfz files). The 32bit version does not allow to simultaneously load two copies of the Salamander Grand Piano sfz, while you can see in the attachment that I was able to simultaneously load even three copies of this sfz in the 64bit version.
By the way, other than this possible point, also I do not see the point in doing a 64bit compilation when the 32bit is working fine.

As a final point, I noticed that when you delete the sfz file from the synthesizer, the memory occupied by the soundfont samples does not seem to be freed. I don't know if this should be said in the issue tracker, since the Zerberus sfz loader/player is still highly experimental, for what I understood.

I don't think I will have time to re-check and write down all the passages I performed for the win64 compilation before the weekend, but expect something during next week.

Ciao,
ABL