The theorbo is a plucked string instrument of the lute family, with an extended neck and a second pegbox. Like a lute, a theorbo has a curved-back sound box (a hollow box) with a wooden top, typically with a sound hole, and a neck extending out from the soundbox. As with the lute, the player plucks or strums the strings with one hand while "fretting" (pressing down) the strings with the other hand; pressing the strings in different places on the neck produces different pitches (notes), thus enabling the performer to play chords, basslines and melodies.