Thanks to all for the warm welcome - and for the intitiation into the arcana of html.On the Cookie Monster thread I have explained why I didn't respond sooner. I was in a state of Mudcat withdrawal for much of the last ten days as my home PC is indisposed and I am relying on the one which I use in work.
Also on the CM thread I've explained the background to my choice of nickname and indicated that I'm quite happy to be addressed either as "plumber" or as "apc", especially by those who can't find the code for the "é" of "Pluiméir" on their monolingual keyboards.
Now I just have to look forward to retirement so that work doesn't get in the way of the music and the 'Cat.