Hey folks,
I'm back (see earlier in this thread, back in May), now on Linux MX 19.3. I got MusicBee working mostly on Linux Mint but it nearly fried my machine in doing so. Maybe Mint 20 has better performance, but I'm not going to bother with that, nor am I going to try again to get MB working under Wine on MX.
Let me suggest to you to look at Cantata and not bother Steve any more about porting to Linux (though, if he did, I'd jump for it in a heartbeat!).
If you want a Linux music player that's beautiful, low resource, and does most anything you want it to, download and install the latest release (2.4.2) of Cantata. Even though the developer isn't updating/upgrading it with new features, he keeps fixing bugs (and sometimes the effect is like getting new features). It does it all for me, managing my music files, playing most any radio station I want (I have some that won't play on Guayadeque, Clementine, and others), search for, find, and manage podcasts, scrobbling, fetch artist Wiki info, images, album covers, and lyrics. Etc., etc., etc. In other words, pretty much anything MusicBee can do (and do soooo well on Windows, when I use Winders).
I've tried VLC (works great as a player only, hard to use, no user interface frills and thrills like MB and Cantata), Clementine (also not really being supported, but can't play some stations and IIRC the podcast support was limited), Guayadeque (again, can't play my favorite internet radio station, so why bother with the rest of it?), DeaDBeeF -- low resource, seemingly 'cause it doesn't have the functionality of MB and Cantata, and sooo many others that I'm tired of listing them. :-)
So stop bugging Steve to port MB to Linux (too much dependency on Microsoft proprietary stuff like .NET Framework) and get Cantata.
But yeah, if MB DID get ported, I'd be there in a heartbeat!