1
Playable with fingers to change pitch
Use the non striking hand to change the length and pitch of the string, available with or without frets
2
use 1 to 3 strings
Some like to tune a chord, or have more than one string making the same note for a shimmer effect.
3
Learn more about overtones
A string vibrates with many different node points at once creating a mixture of overtones giving it its color, the mouth shape will emphasize the various overtones giving a "second" note melody
