Beethoven - Sonata in E op. 109

Artur Schnabel, piano

Here's my argument.

Score

It's the Schenker edition, not officially an urtext edition but I doubt there was ever a more meticulous editor than Heinrich Schenker.  I give it because it's my experience that his fingerings are enormously valuable.  There are other editions at IMSLP.   I'll certainly never play the late sonatas in public, that's something for only the really great or ambitious students to do but I can listen.

Here's Rudoph Serkin