types:
banjo
a stringed instrument of the guitar family that has long neck and circular body
chordophone
a stringed instrument of the group including harps, lutes, lyres, and zithers
clavichord
an early stringed instrument like a piano but with more delicate sound
dulcimer
a stringed instrument used in American folk music; an elliptical body and a fretted fingerboard and three strings
guitar
a stringed instrument usually having six strings; played by strumming or plucking
koto
Japanese stringed instrument that resembles a zither; has a rectangular wooden sounding board and usually 13 silk strings that are plucked with the fingers
forte-piano,
piano,
pianoforte
a keyboard instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds
psaltery
an ancient stringed instrument similar to the lyre or zither but having a trapezoidal sounding board under the strings
samisen,
shamisen
a Japanese stringed instrument resembling a banjo with a long neck and three strings and a fretted fingerboard and a rectangular soundbox; played with a plectrum
sitar
a stringed instrument of India; has a long neck and movable frets; has 6 or 7 metal strings for playing and usually 13 resonating strings
cither,
zither,
zithern
a musical stringed instrument with strings stretched over a flat sounding board; it is laid flat and played with a plectrum and with fingers
balalaika
a stringed instrument that has a triangular body and three strings
bass guitar
the guitar with (usually four) strings that has the lowest pitch
cello,
violoncello
a large stringed instrument; seated player holds it upright while playing
dulcimer
a trapezoidal zither whose metal strings are struck with light hammers
grand,
grand piano
a piano with the strings on a horizontal harp-shaped frame; usually supported by three legs
harp
a chordophone that has a triangular frame consisting of a sounding board and a pillar and a curved neck; the strings stretched between the neck and the soundbox are plucked with the fingers
Hawaiian guitar,
steel guitar
guitar whose steel strings are twanged while being pressed with a movable steel bar for a glissando effect
lute
chordophone consisting of a plucked instrument having a pear-shaped body, a usually bent neck, and a fretted fingerboard
mandolin
a stringed instrument related to the lute, usually played with a plectrum
viol
any of a family of bowed stringed instruments that preceded the violin family
viola
a bowed stringed instrument slightly larger than a violin, tuned a fifth lower
fiddle,
violin
bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow