On taking my seat in the Music Shed, I was surprised to see the gentlemen of the BSO in shirtsleeves — and it was a pleasant surprise. Their playing of Mahler’s Second was very much a shirtsleeves sort of performance, and that was also a pleasant surprise. I’ve heard that Michael Tilson Thomas had very little rehearsal time for this concert. This made itself heard, I thought, in a certain lack of concentration in the fifth movement — entirely unlike the first three movements, which were intensely focused, if anything. Even with this proviso, the performance was an impressive success. MTT took charge of the orchestra with total confidence and produced his personal sound and interpretation from the orchestra with authority and conviction — and it was precisely this that made the performance so outstanding.