In 1798, when Beethoven was 27, he published a set of three trios for violin, viola and cello marked Opus 9. He would have liked to write string quartets, but Haydn, who had invented that genre, was still writing quartets, and they were among his best. There wasnt much in the string trio repertory, so that made it easier for Lou.
Just as his Opus 1 trios for piano, violin and cello had two sensible works plus one radical work in C minor, Beethoven wrote two sensible trios plus one radical trio in C minor. This is the second of the two sensible trios.
It starts sweetly, marked allegro, with sensible music for sensible people. At :58 the second subject appears in A Major. At 1:50, development begins in the minor but turns to the major in a back-and-forth method. At 3:13 he re-composes his recapitulation. At 4:08, the second subject recaps in the correct key of D Major. The coda is based on the material that was used to transition between the first and second subjects.
The second movement, marked andante quasi allegretto, is in D minor. This isnt a Beethoven conversation with God Lou hasnt progressed that far yet but the sense is of both sadness and contemplation.
The third movement is a minuet marked simply allegro in D Major.
The finale is a rondo in D Major also marked simply allegro, and youll be hearing that first theme a lot. He wraps it up in style.
Tomorrow night its another string trio.