I just thought that if somebody bothered to maintain this program for all this time they might as well have open sourced it and then somebody might port it to Linux. Although we’ve still got xmms

And you are right wine is not an emulator by name, although I wonder really how it’s not technically an emulator. I think by “not an emulator” they meant something like, it’s not a virtual machine (back then, emulators were known for emulating a CPU and/or hardware for the software to run on). Wine is like Windows binary compatibility here it provides Windows system calls and libraries to the program in order for it to run.