How to take control of existing terminal programs via ssh (cmus)

So I have a terminal with cmus running on my main PC at my desk. I want to ssh to this main PC from my laptop and "take control" of cmus remotely, so that i can adjust volume, pause and play, choose the song, etc. Note: I don't want to stream music via ssh. I just want to take control of an existing cmus session via ssh. both machines are running linux mint. My question is different to other questions already asked because I want to take control of an *existing* cmus process, rather than spawning a new one.