Zander's blindingly-fast "authentic tempos" are in evidence in Boston 4 times per year. His 6th sounds completely different, and not to my taste. His take on Stravinsky's Rite of Spring in 1990 sort of launched this whole issue of originally-scored tempi bigtime.
"period interpretation" beethoven?
I was at a wonderful classical music store in northern Indianapolis a couple of weeks ago where they told me about some relatively recent (15 years or less) performances that had benefitted from scholarly study into beethoven's forces and tempos. Unfortunately, I have lost the paper on which I wrote this down... anybody got a pointer to who this might be?