H410 - Measure 98

Looks like she originally wrote this whole measure as a b minor chord, then later moved all the sixteenth notes down to an a minor chord.

In the right hand, you can see all the notes of the b minor chord written over more heavily a step down.

In the left hand, she had to change the ledger lines of the sixteenth notes to change them from b minor to a minor.

For the bass notes, it looks like she rewrote that B in the middle of the measure as an A. She did not rewrite that first B as an A, but she probably intended to!