In the video, I’m trying to perform a liptrill. It’s not exactly a great attempt—today just wasn’t my day. It’s also a bit awkward because I have to sit, hold my phone in my hands, and play a virtual piano on my laptop. That also restricts me, and after a while my arm starts to hurt and my shoulder and neck get tense. I also asked two questions in the video: one about the passaggio, and the other about how to perform a liptrill. If nothing else, I hope I’m a useful guinea pig.