Just listened to: a recording of Beethoven’s Piano Sonata No. 21 in C Major, Op. 53 “Waldstein” (1804) on fortepiano by Ronald Brautigam on BIS (2008). Beethoven continues his habit of undernourishing his middle movements. But no matter: This is one of the man’s monumentally heroic sonatas, and it’s played here with dizzying snelheid on an instrument that, for its wider variations in timbre, I think I might prefer to modern piano.