Schopenhauer praised Mozart and Rossini, esp. the latter’s operas…

Mozart, The String Quartet No. 19 in C Major, KV. 465 (“The Dissonance”):

The first movement:

This is the full piece, and played slower:

Rossini, Il Turco in Italia (premiere on 14 August 1814):

If you want to see some weird and amazing 1980s rendition of Rossini’s La Cenerentola, take a look at 1:23-1:28:

He had more mixed views of Beethoven and Haydn.

Ludwig van Beethoven, Sonata No.9, Opus 47 “Kreutzer” (1802, 1803) for piano and violin:

Here are two others versions–note how all three are so different from each other:

Schopenhauer directly influenced many artists, especially the composers Wagner and Mahler, e.g.:

Wagner, Tristan und Isolde

Gustav Mahler, Symphony No. 5 in C sharp minor (1901-1902) Vienna Philharmonic, Leonard Bernstein