It sounds like you want to centralise you music collection, so it is available to devices all through your home, not just on the PC.
In which case, you probably want to start looking for a file server; either a NAS, or check to see if your router will provide a file server for a USB HDD connected to it.
Once you have your music on a file server, you can get MusicBee to access it on your office PC. Or any other devices that can access the file server.
Then you might start thinking about using the server to provide a media server function, specifically serving media, say, using the DLNA protocol.
Note that your PC could be made to work as a file server (using Windows sharing), and a media server (MusicBee will provide a DLNA media server). You would need to leave the PC on all the time, though.
Once you have a file server and media server running, you can stream media to devices all around the house, controlling them from any number of devices.
There are three components to a digital media system:
A Digital Media Server (DMS) stores your media, catalogues it (using metadata) into a database, and streams it to devices when instructed to do so.
A Digital Media Renderer (DMR) takes a digital stream sent to it, and converts that stream into audio, or still or moving images.
A Digital Media Controller (DMC) interrogates the database held by the DMS, and allows the user to instruct the DMS to stream selected media to one or more DMRs.
Things get complicated by Digital Media Players (DMP), which can combine DMC & DMR, or sometimes all three DMS/DMC/DMR. One can think of an MP3 player as a DMP of all three parts, but very closely integrated. MusicBee will provide all three components.
Most network-enabled digital media devices these days will operate as a DMR; smart TV, DVD player, Blu-Ray player, etc.
I use a NAS. I access my music on the NAS, using Kodi, MediaMonkey and MusicBee (running on two PCs and a Windows tablet), accessing the NAS file server.
The NAS also provides a DLNA media server. I access this using UPnP/DLNA media clients (BubbleUPnP) on a number of Android devices. I can use any of these devices to control the streaming of music to any of the DLNA DMRs in the house. MM and MB will also stream DLNA to any of these DMRs...
I have a dumb TV, and a cheap Android box, that connects via HDMI to the TV. I run Kodi and BubbleUPnP on this Android box. Kodi accesses the NAS file server. Bubble accesses the NAS DLNA media server. The TV audio is connected via optical SPDIF to a surround sound receiver. I can get this copy of Bubble to play music via the TV, using the DMC built in to this copy of Bubble, or from _any_ of the DMC tools running on any of my DLNA-capable apps (MM, MB, Bubble, etc), running on _any_ device in the house; I simply select the relevant output device in those apps.
If you want a 'MusicBee experience' on your TV, you'll have to run MusicBee on something connected to the TV; a cheap Windows box, or tablet, connecting via HDMI.
There are a huge number of choices, but, fundamentally, they are all based around a central DMS, and a number of DMRs in the house, controlled by one or more DMCs. The rest is just detail...