Shambles, thank you for clarifying the point of music sessions, which are for joining in, not listening to. As opposed to sessions where people take turns. Mixed sessions probably work best when you have players who sing and singers who play. I get bored in music thrashes because I'm not an instrumentalist, so I generally avoid them. (You can have a separate thread about singer/ percussionists who play spoons and tambourines if you like).Also, Shambles, the Wareham Wail wasn't invented because there was a need for an event that specifically excluded instruments. It is a glorious event in its own right. Don't knock it if you've never been - try coming next year, and see if you enjoy it.
Kitty