Many thanks to the folks at the Trent House Open Mic night. Asked to be put on the list at about 9:20 and was told tersely "We're full". Stayed to hear a couple of songs during which other musicians came in and were put on the list.
Conclusion either 1. A clique, or 2. Ageist.
Thanks guys - won't be going there again.
P.S. for fans of the never-ending tour, tomorrow will see the unvailing of a new Men of the Tyne show in the lovely town of Jarrer - so no Habit setlist for yous. Sorry.