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2. Introduction
The guitar is a musical instrument classified as a fretted string instrument with
anywhere from four to 18 strings, usually having six. The sound is projected either
acoustically, using a hollow wooden or plastic and wood box, or through electrical
amplifier and a speaker. It is typically played by strumming or plucking the strings
with the fingers, thumb or fingernails of the right hand or with a pick while fretting
the strings with the fingers of the left hand.
5. Parts of Guitar
Strings
The most important part to a guitar sound is the strings Modern guitar strings are usually
made from either nylon or steel, nickel, and bronze. They are stretched from the bridge of
the guitar over the body and fret board, against the nut and into the tuners (which adjusts
the tension of the strings to the desired notes). When the guitar player plucks the strings
it causes them to vibrate which causes the air around the string to vibrate thus making a
sound wave. The frequency that a string produces is determined by the mass, length, and
tension of the string. Heavier strings vibrate more slowly Higher tension raises the pitch
Shorting the string raises the pitch
6. Harmonics
When a string is plucked it vibrates in
more than one way. The string vibrates in
many different shapes and directions
which produce many different amplitudes
and frequency waves which are called
harmonics. The string can vibrate as if it
was two half strings with a node in the
middle or as three thirdstrings and so on.
Guitar Body
If it wasn’t for the body of aguitar the
vibration of the strings would barely be
audible. The body of the guitar amplifies
the sound of the strings so the sound can
be heard. When the player plucks the
guitars strings, the strings vibrate, which
transfers the mechanical energy down
the strings to the guitars bridge which is
attached to the guitars body.