The double bass, also called the string bass,upright bass, bass violin or contrabass, is the largest and lowest-pitched instrument in the orchestra. The bass is called the tempo maker because it controls the tempo in orchestra music. All ears go to the bass. If the bass slows down, the orchestra will slow down, and visa vera. In addition, the bass can be heard in different styles of music, including jazz, 1950s-style, rhythm and blues, rock and roll, traditional country, bluegrass and many types of folk music.