A mandolin is a stringed musical instrument that belongs to the lute family. It typically has eight strings, which are paired in courses, and is played with a plectrum. The body of the mandolin is often shaped like an hourglass, and it can be made from various types of wood, contributing to its unique sound. Mandolins are commonly used in various music genres, including bluegrass, folk, and classical music. They produce a bright, ringing tone and are known for their ability to play fast melodies. Famous mandolin players include Bill Monroe and Chris Thile.