 It was a slow gentle dance that may be danced in groups but also as a solo, set to strings and woodwind with a humming chorus, with the dancers in elaborate costumes.Many such lavish dances stopped being performed after the An Lushan Rebellion which diminished the power and wealth of the state, and court music and dance became greatly reduced.During the Sui and Tang dynasties, song-and-dance drama from the earlier dynasties became popular and developed further.