What's the Kennection? #149

Aircraft rotation is measured in three dimensions: yaw, roll, and what nose-up-and-down motion?

Semibreves, crotchets, and quavers are among the symbols used to notate what?

Jim Morrison told journalists, "There are things that are known and things that are unknown; in between are" what?

On old rotary dial phones, what word, rather than a trio of letters, usually appeared next to the zero?

Who's the black private dick who's a sex machine to all the chicks?

What's the "Kennection"?