"If You Like Good Music, You Should Get a Perfect Score on This Quiz"

Interesting quiz but with an important qualification.

They report the average score as 158 and the best as 240. I scored 209 which I think is pretty good for an old guy. I don't think I missed any on "classic rock"--they were easy--but on rap, electronic, and indie I didn't do well. (Though I did recognize Chuck D. Old school, you know.)

But here's the qualification: both of my daughters scored 244. But the "high score" didn't update. What gives?