(simple name). Sharp the
second line and it will stand for the pitch G sharp. (Compound
name.) The third line stands for the pitch B. (Simple name.)
Flat it, and the line will stand for the pitch B flat.
(Compound name.) N.B. These signs do not "_raise_" or
"_lower_" notes, tones, pitches, letters or staff degrees.

11. _Double-sharp, Double-flat:_ Given a staff with three or
more degrees sharped in the signature, double-sharps are used
(subject to the rules governing composition) to make certain
of these degrees, already sharped, represent pitches one
half-step higher yet. Similarly, when three or more degrees
are flatted in the signature, double-flats are used to make
certain degrees already flatted, represent pitches one
half-step lower yet. Examples: To represent sharp 2 in the key
of B major, double-sharp the C degree, or (equally good)
double-sharp the third space (G clef). To represent flat 6 in
the key of D flat major, double-flat the B degree, or (equally
good) double flat the third line (G clef). _Do not say_: "Put
a double-sharp on 6" or "put a double-sharp on C," or
"_indicate"_ a higher or lower pitch "_on_" a sharped or
flatted degree.

12. _Signature:_ Sharps or flats used as signatures affect the
staff degrees they occupy and all octaves of the same.
Example: With signature of four sharps, the first one affects
the fifth line and the first space; the second, the third
space; the third, the space above and the second line; the
fourth, the fourth line and the space below. _Do not say_: "F
and C are sharped," "ti is sharped," "B is flatted," "fa is
flatted." "Sharpened" or "flattened" are undesirable.

13. _Brace:_ The two or more staffs containing parts to be
sounded together; also the vertical line or bracket connecting
such staffs. _Not_ "line" or "score." "Staff" is better than
"line" for a single staff, and "score" is used meaning the
book containing an entire work, as "vocal score," "orchestral
score," "full score."

14. _Notes:_ Notes are characters designed to represent
relative duration. When placed on staff-degrees they
_indicate_ pitch. (Note the difference between "represent" and
"indicate.") "Sing what the note calls for" means, sing a tone
of the pitch represented by the staff degree occupied by