Viola da Gamba is a stringed instrument that was popular in the 16th and 17th centuries. It is similar to the modern cello, but has a fretted fingerboard and six or seven strings. The instrument was used in both solo and ensemble performances, and was often used to accompany vocal music. The term 'Viola da Gamba' literally translates to 'viol of the leg, ' referring to the way the instrument is held between the legs when played.