I started my own GoToSocial instance this week, and found the same. TBH, from my exported list of about 160 people I from followed on Mastodon, I only re-followed 6.

These were all longstanding relationship - a couple of which started on Twitter when it was OK.

I have friends who live there, and they report the same. They visited us for the first time here in London recently, and were quite shocked by the stark differences.

I should add that while I’m not specifically a “Jazz Musician”, I play piano , and utilise substitutions, extensions etc. :)

Its the same kind if vibe as when you hang out with certain Jazz musicians / fans and they start discussing chord substitutions, extensions, etc.