The string section is the largest body of the standard Classical orchestra. It normally consists of the first violins, the second violins, the violas, the cellos, and the double basses (or basses). In discussions of the instrumentation of a musical work, the phrase "the strings" or "and strings" is used to indicate a string section as just defined. An orchestra consisting solely of a string section is called a string orchestra. Smaller string sections are used in jazz, pop and rock music arrangements.