Random Riddle: Beethoven

Beethoven was a composer, obviously, and utilized the Musical Key in this teaser. When he says “Go up Eleven”, he is referring to the letters “ABCDEFG.” Going up Eight notes from ‘D’ brings us to ‘E’ (because, of course, the musical scale simply repeats itself in the next octave). Going down Eleven notes brings us to ‘A’, and going up Five notes brings us to ‘F’. Hence, DEAF (which, incidentally, Beethoven was).