Today was a bad day on the horn. Just some overall weakness and inability to play the upper register (which for me stops at high C, usually).
I warmed up with some Cichowicz (first three in VCII), moved on to lip slurs, but when I went to the tonguing exercises, it just wasn't there. At that point, I thought I could do some basic exercises but it was clear I was done, and I packed it up.
Is there something that can be worked on those kinds of days or am I just better off packing it up? My practice time is up to an hour before I start my work day.