The band I'd been playing in until the end of last year, when the singer started having mental health issues, finally played again last night. The singer and keyboard player had separate slots at a beer festival, which they decided to combine, and I decided to turn up too and see if they wanted me to join in. When I got there, I found that the percussionist (who suffered a heart attack a little while ago, after we'd last gigged together) had also turned up. So, completely unrehearsed, and with an interval of over a year since we'd last played together (the percussionist was double booked for the last gig so we'd got a dep in), we weighed in. Went down an absolute storm. It does help that a large part of the audience already knew us and liked us.
I'm hoping that this isn't going to be a one-off. We all really enjoyed ourselves.