Suspenseful! A CLEFhanger! – Braille Refreshers 2024052401

* Section 4 in the Music Braille Code, 2015 covers clef signs. – In musical notation, a "clef" is any of several symbols placed at the left-hand end of a staff, indicating the pitch of the notes written on it. (The treble clef is probably the most commonly represented in print media. 🎼)

Which option below correctly completes the first sentence of Section 4 in the Music Braille Code?

"Clef signs are routinely ...