I think I'm starting to get a mental block on these Preludes. I seem to forget how to read music when playing them. But I did start Prelude 5 after having brain freeze on the last 5 chords that need learning for Prelude 4. Prelude 5 is going to be another super-fast one I will need to work on s l o w l y.  Luckily, I sort of learned it a few years ago and it's coming back quickly.  Goal is to work Prelude 5 up to ♪=112 consistently.