Early orchestral music featured high and low horn parts. Beethoven used three horns in his Third Symphony and added a fourth horn for the Ninth. Today most orchestral and symphonic works use four horns.  But Wagner regularly used up to eight horns in his work, and Richard Strauss's Alpine Symphony is scored for twenty horns – eight onstage and twelve offstage! Many orchestras also have a fifth horn player who works alongside the first horn and gives them a break before particularly challenging solos.