That’s interesting. That is a lot of music for that amount of RAM. I would recommend 16GB for that size of a music database.
This is what it looks like while I am playing music (spikes were simply me opening up my web GUI):
My library is 2.4TB, 53,544 tracks.
ffmpeg provides the latest codecs for your music collection. It’s mostly germane if you are playing licensed formats like AAC. More about my build and ffmpeg is here.