Historic Masterclass: Gina Bachauer mentors young Yefim Bronfman (1973)

I was practicing well past 2 a.m.--in fairyland, as it happened, rekindling Grieg's Dancing elves, (Op. 12, No. 4) when I took a break to check comparative tempos of the greats on You Tube. In my rapid transit through renderings of Rubinstein (41 seconds), same for Richter, I stumbled a upon a gem from the…