Yesterday, I spent FIVE hours on the phone to three different Microsoft helpers after Microsoft tried, the night before, to force Windows 10 onto my computer. When it got to the end I disallowed it and it reinstalled Windows 8.1 on which I am working on two important jobs. The result was various things which didn't work: websites like my bank showed as not having valid security certificates (which they have), pictures and videos on Facebook didn't appear and so on. After long and painful argybargy with the Philippines (where the Microsoft helpers are located), my computer is now working though I still have to fix up some issues with my virus protection provider. I must say that the three people I dealt with at the Microsoft call centre were patient and helpful: Sarrina, Robert and Jiggs. Coincidentally, my service provider had outages in my area for emails. All-in-all an awful day in which I got NO work done. By way of compensation, in the evening, P. and I headed for town for a cheap and cheerful at Yoyogi, and then to the second main concert for Metropolis. The Song Company joined for three pieces based on street cries of Paris and London (Janequin, Gibbons and Berio) and there were works by Copland, Kurth and Higdon, all enthusiastically received (and accessible). In the tram on the way home, we sat near one of the violinists who gave us the inside gen on being in an orchestra.