Answer:

clef

Answer	Crossword Clue
CLEF	Staff symbol
CLEF	Tenor, for one
CLEF	Treble symbol

CLEF	Staff member?
CLEF	Symbol on a staff
CLEF	Symbol before a key signature
CLEF	Musical symbol
CLEF	Pitch indicator
CLEF	Staff leader
CLEF	Sign on a score
CLEF	Staff sign

CLEF	Sign on a staff
CLEF	Pitch symbol
CLEF	Opening on a staff
CLEF	Staff leader?
CLEF	Sheet-music symbol
CLEF	Bass or treble
CLEF	Music-reading need
CLEF	Staff insignia

CLEF	Staff notation
CLEF	G follower
CLEF	G or treble follower
CLEF	First symbol on a musical staff
CLEF	Musical marking
CLEF	Musical staff insignia
CLEF	Bass, for one
CLEF	Pitch caller?

CLEF	Staff symbol before the key signature
CLEF	Score symbol
CLEF	Bass symbol
CLEF	Curvy music figure
CLEF	Sheet music symbol
CLEF	Symbol before the sharps and flats
CLEF	Musical sign
CLEF	C, F, or G

CLEF	Key signature preceder
CLEF	Pitch sign
CLEF	Bass, treble or C
CLEF	Sheet music sign
CLEF	Symbol before the key signature