music server

By “2112”, I’m assuming you mean “2012”.

Yes, you can add your personal music library stored on a 2012 Mac to your Sonos system. I still play music stored on a 2009 iMac to my Sonos system and it works great.

Read more about how to add your music library here:

https://support.sonos.com/en-us/article/add-your-music-library-to-sonos
 

And here are the supported audio formats for a Sonos music library:

https://support.sonos.com/en-us/article/supported-audio-formats-for-sonos-music-library