Sometimes, there's a section of the piece I look at and go like "Well, crap

that's gonna take me a month to get down" ....... and then after two or three days, I find myself being able to play that section and think "Whoa, didn't know I had that in me."

This happened to me most recently in La Campanella(the double notes and the coda) and Schubert's Impromptu op. 90 no. 2.
I guess it's a straightforward question; I assume this must happen to almost everyone quite often so share details
