From: Deryk Barker

>The (IIRC) Beethoven concerto cycle under Hogwood - who is the pianist?
>- didn't use Beethoven's own cadenzas in at least one concerto, on the
>grounds that they were written later for an instrument whose range exceeded
>that available when the concerto was actually composed....

That would be Steven Lubin.

Deryk is correct.  Lubin performs on replicas of a Walter, 5-octave
fortepiano for the first two concerti.  Beethoven's cadenza's (from 1809)
for these same concerti require at least a 6-octave beast.

Mark K. Ehlert