Chinese music has a long tradition with many regional styles and instruments. Some key types include Chinese opera music, orchestral music, and solo performances. Beijing opera is the most popular style of opera, known for its dramatic stories, large repertoire, and many performers and fans. Traditional Chinese instruments include the erhu fiddle, pipa lute, zheng zither, and others like the yueqin lute and sheng mouth organ. Music is meant to be simple, calm, and model proper behavior. Compositions aim for a magnificent beginning and ending, harmony, clarity, and smooth continuity.