So...the smirk from Dylish earned a curious smile from Ella and she shrugged, not exactly sure what she'd done to earn one of those. Oh well, Dylish always seemed to be smirking about something or other. He was quite good at it, actually.

And...they were moving on? Hadley had said that the more waves per second, the higher the pitch. And since 310 was a larger number than 130...

"Is it three-hundred and ten hertz, Professor?"