Hiya, Boys! (Only guys write this "I REALLY know how to read syllabi, but NOW, I just have to learn to DANCE"- style- it's kind of like RPG nerds with this huuuuge expertise on medieval armory and weaponry, yet they still get yelled at by their grandmas for spending too much time in Azeroth instead of doing chores)
While I'm profusely jubilant that a ballroom-specific internet forum is aplomb with articulate prose, I'm also aware that there are varying degrees of interpretational capacity amongst authors and readers. That being said... if something flies over your head, why not just go to dictionary.com?
Back to your regularly-scheduled hair-splitting on the phraseology of lilting and waltzing- or floating, or gliding, or whatever. You know what else is floaty and airy? Flatulence.