I think I've got too much muscle-memory/cemented wrong things in my hands to get Prelude 3. Maybe someday I will see if Practiceopedia says anything about un-cementing things. I think I will put it away again.

Worked on speeding up trouble spots in Berceuse. I couldn't even play them at regular speed! So they will require more work.

Speeding up LGR will require work on the last two lines.  The dynamics don't quite make sense, either.