Beethoven!

Performer: Emerson String Quartet

Repertoire:

String Quartet Op. 18, No 6, Movement I
String Quartet Op. 74, Movement III
String Quartet Op. 131, Movement I

Worth noting: Beethoven was deaf when he wrote Op. 131. He wrote it after completing and premiering the 9th symphony. It was one of his last major works.

Plenty of performances are available on YouTube. Go check them out!