Ok, so here’s the thing…this is going to be a rather short blog…what can you do? I have a theory paper to write ,people!
Measures 79-90 of Piano Sonata in C major, Op. 53, by Beethoven are a whirlwind of 16th notes and chromaticisms.
Here is the roman numeral analysis for it:
E minor
79 iv64 III
80 iv iidim
81 i6 III
82 i iv
83 III ii

Cmajor
84 I I6
85 iii6 ii
86 I
87 I

F major
86 V I6 IV
87 iii6 ii
88 vi I6 iv
89 iii6 ii
90 I