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these

instru-

ments create sound

through the

vibration of a

player’s lips

on the mouth-

piece. The air that

passes through the

player’s lips

goes to the air

column of the

instrument

and thus

creates

sound.

Ex-

amples:

trom-

bone,

trumpet,

tuba

•

Wood-

winds—

These instru-

ments were

originally made

only of wood

but now other materials are

used. On reed instruments

like the saxophone and

the clarinet, a thin

material is

placed on the mouthpiece so that when the

player blows into it the air is forced to go

to a reed and sets it to vibrate. In dou-

ble-reed instruments such as bassoons

and oboes, the material placed on the

opening of the mouthpiece is thicker. In

woodwinds such as flutes, the player

blows air into the edge of a mouthpiece

thus creating sound.

• Free-reed—Refers to wind instruments that

have a freely vibrating reed and the pitch depends on

the size of the reed. A good example of this type of

instrument is the accordion.

•

Free—Free aerophones are those in which the

sound is produced by a column of air outside of the

instrument itself, such as a bull-roarer or a whip when

it’s cracked.

Electrophones

Electrophones are musical instruments that produce

sound electronically or produce its initial sound tradi-

tionally and then are electronically amplified. Some

examples of instruments that produce sound electron-

ically are electronic organs, theremins, and synthesiz-

ers. Traditional instruments, which are electronically

amplified, include electric guitars and electric pianos.