Back in 2006 Andras Schiff gave a series of lecture-recitals at the Wigmore Hall in London, covering the 32 Beethoven piano sonatas with opus numbers. I downloaded the entire series over a year ago, and I’ve been dipping into it on and off since then. It is a very good layman’s introduction to the sonatas. If you listen to the late-period sonatas (the last five from number 28, Op. 101 to number 32, Op. 111), you will find that the music still sounds very fresh, and indeed already points strongly in the direction of Romanticism.