You may be referring to the sound of a Shakuhachi.
A piano is both a percussion instrument and a string instrument. Inside a piano, tiny hammers strike strings to make pitches. It is a string instrument in that the strings are what vibrate to make the sound, but it is a percussion instrument in that it has a keyboard and strikes to make sound.
An instrument with short strings will make a rubber band type sound but real high pitched.
If you press the hudhud instrument it'll make a low pitch sound but if you press it upward it will make a hudhud sound.
If you put the bow near the bridge, the instrument will sound louder. If you put the bow far the bridge, it will sound softer.
Percussion - example - Drums: these instruments are struck with something such as the hand, or a stick or hammer to make the sound. Woodwind- Example - Clarinet: these instruments have a reed to vibrate to make the sound. Brass- example - Trumpet: these instruments make sound by the vibrating lips of the player. String - example - violin : these instruments have strings that rubbed with a bow or plucked to make a sound There are also electronic instruments such as the theremin and one might consider the human voice to be an instrument.
A howling sound
Listen to this:
it's called howling
they make a sound like a wolf howling for more info go to http://animals.nationalgeographic.com/animals/birds/common-loon.html
Keyboard and harpsota can
A piano is both a percussion instrument and a string instrument. Inside a piano, tiny hammers strike strings to make pitches. It is a string instrument in that the strings are what vibrate to make the sound, but it is a percussion instrument in that it has a keyboard and strikes to make sound.
Bassoon
An instrument with short strings will make a rubber band type sound but real high pitched.
If you press the hudhud instrument it'll make a low pitch sound but if you press it upward it will make a hudhud sound.
an instrument
If you put the bow near the bridge, the instrument will sound louder. If you put the bow far the bridge, it will sound softer.
Dogs make howling noises in cars.