The two different instruments are a bit alike. There are two kinds of bass, one is electric bass, the one that looks like electric guitar, longer than guitar. The common four strings also have five strings and six strings. Beth’s chord is thicker than guitar, and the division of labor in the band is also very different. Beth is mainly responsible for taking bass, controlling harmony and controlling rhythm with drum. The guitar is mainly played in harmony and texture, playing the main melody, playing SOLO, sweeping the rhythm and so on. The other is called the bass, which looks like a cello, and is bigger than a cello. This is very common in jazz bands. The same is true of the BASS in the orchestra.