Josh Ourisman 
There’s two tour busses dropping off what appears to be an older-skewing group of high end conference attendees on #TheAvenue. This is very strange. #Baltimore #Hampden
Unless I’m seriously misinterpreting those lanyards. It appears to be a pipe organ convention? #TheAvenue #Baltimore #Hampden
I initially thought it had to do with organ transplants, which, honestly, would make a lot of sense for #Baltimore… #TheAvenue #Hampden
Brian E. Young (he/him) 🌈@joshourisman It must be this one! I have a friend who is a pipe organ repair person. Their posts are all pipe orgs everyday. And he was posting all about it! https://organhistoricalsociety.org/2024/
@sketchee that is definitely the logo that was on the badges!