The issue is the fantasy of social media doesn't convert well to reality. I've reached out numerous times "to jam" with people who have openly expressed a desire to, and... ...nothing. It's like a full conversation stopper. It's weird.

As far as I can tell the social anxiety takes hold, where someone might have their perceived fear of "being bad" exposed, so they recede back into their insular, online-only personas.

I take it you're a musician, and so I really think the only way is to take your drums (or guitar, or whatever) to the park or a local 'town square' and just get down to business. People will interact with you in whichever way they do, but at least it will be real, and possibly lead to real fruitful relationships.