Something More -The Letter Y

When I wrote about last week's voice lesson, I knew there was something else about it that I wanted to mention, but for the life of me I couldn't remember. I was listening to the recording in the car this morning and was reminded, but that was this morning, so now, of course, I don't remember. But I think it had something to do with physics, and sound waves, and a word that sounded like one word and rhymed with another. Oh and something about how singing different vowels for the same notes requires a different technique, all related of course to that physics word that sounds like one word and rhymes with another. I do remember my teacher saying also that some of it depends upon whether or not the day of the week that you sing a particular song ends with the letter y. So if there's a reason this particular post about my lesson sounds so, well, sounds the way it sounds, it's probably because I'm writing it on a day that ends with the letter y.