Mando-bass is an instrument that is similar to a guitar and a bass guitar. It has four strings (like a guitar) but it is bigger and has a deeper sound (like a bass guitar). It usually sounds best when it is played with a slide (like a guitar). The strings can be plucked with fingers or a pick. People usually play mando-bass in folk, country, and blues music. It can also be used to add depth to other instruments in different kinds of music.