Jonas Kaufmann, Jochen Rieder, BBCSO. Photo: Mark Allen/Barbican It's possibly some measure of my current distraction - with libretto, deadlines, nephew's wedding the other day and an ongoing situation with a very sick cat - that I completely forgot Jonas Kaufmann was coming to London to do the Strauss Four Last Songs , until the Barbican press office sent me an email saying, in effect, '...but don't you want tickets?'. So after Meghan and Harry had walked up the aisle - and so, in Harrogate, had our nephew and his own American bride, and so, in Cambridge, had Guy Johnston and Ali Digby (huge congratulations to music's loveliest new couple!) - and the sun shone and the Rev Michael Curry had wowed a rather startled congregation with his reminder of the powers of love and fire, off we headed for the City to see what the tenor of this event would be like. One question that always applies at such concerts is: what else goes into the programme? Kaufmann's friendl...