I notice I am trying to ingrain the notes into my fingers so my mind doesn't have to concentrate that hard (and I know that can't actually read the music up to tempo, so I must have to ingrain it right? Maybe not. I'm not sure.)I worked through that easier piece like I wanted to. There's more to it now. It's interesting how more details appear after awhile and these become the difficulties.I pushed through with my plan of working through the piece, but by the end I noticed I was a little zoned out, just trying to play the notes and rhythms in time. I would do a few repetitions and then notch the tempo up. Time flew, but it was probably at least an hour sitting there doing this.What I'm wondering is if this is good, to have your mind do that? My mind feels a little numb, even now. I think it may have been too much concentration.