Yoga Update
I have continued to go to Kundalini Yoga classes. I've even started getting up to make it through a practice before work. The last couple of classes have been more enjoyable than some of the previous ones. This seems to be a consequence of the absence of newbies in the class. (I mean I'm still a newbie, I guess, but I at least have previous experience with hatha. Some of the people showing up had literally never been to a yoga class before).

For the last few weeks, it has just been students who already have an idea of the flow of the class and familiarity with the basic warm-ups, and the teacher has picked up the pace of the classes. He's also started adding some short "higher chakra" kriyas to the end of the regular sets. I've also noticed that the song doesn't really seem weird to me anymore. That is the most persuasive evidence I have that I'm settling into the class.