Great to hear Ravel's Boléro (possibly the most famous classical music crescendo) live at the Proms the other night. This is one of those pieces that needs to be played correctly. I'd be the first to admit that it can be quite boring if not performed well. First of all, it has to be done reasonably quickly: most versions are under 15 minutes - Riccardo Muti's recording with the Philadelphia Orchestra runs for 17 minutes 9 seconds, which is much too slow. Ideally, it's around 14 minutes. Ravel himself said the tempo mustn't vary at all but, in my opinion, maintaining a steady tempo throughout means the piece just doesn't work. As someone once pointed out, if the conductor does this, the performance actually seem to get slower. For the maximum excitement, the tempo needs to be edged up a little towards the end. The orchestra needs to put energy into the piece and (although it must tax the brass players in particular) sustain all the notes throughout, not allowin...
Sometimes a grumpy old man, at others middle-aged but not past it yet. My blog title is a quote from a 1970s Doctor Who story - and, by the way, there is no pause before "probably"! That's the genius of Tom Baker's timing.