I learned the hard way that it’s rather difficult to play the cello without using the D string and trying not to use the A string. My poor cello isn’t doing well. The pegs are slipping constantly, and the bow could really use rehairing. My D string is flat by about a factor of 2^(1/24) and the A by somewhat less than that, and I’m not strong enough to fix them. Therefore, it is absolutely essential that I change my A and D strings very soon. I don’t want to go through tonight’s rehearsal trying to pretend I don’t have a D string again. At any rate, I will not use any form of instant messenger again until my A and D strings (at least) have been changed. Hopefully I will also be able to use the absence of instant messenger to my advantage to learn about the homotopy extension property and possibly some algebra in the meantime.
I find it rather cruel that orchestra rehearsals now end at 10:30, an hour after I’m supposed to be asleep. As a result, I changed my alarm clock from 4:30 to 5:20, but apparently I was sufficiently accustomed to being awake at 4:30 that I woke up on my own at around 4:45 today. How I’m going to stay awake during tonight’s rehearsal is beyond me though.
Happy Groundhog Day. May the winter stick around for a while longer.