Royal officials said two choirs, an orchestra and a military fanfare team will provide the music for the wedding of Prince William and Kate Middleton.
The reception to follow at Buckingham Palace will feature Prince Charles' official harpist.
St. James' Palace says the couple took great care in choosing the music for their service.
The couple and William's father, Prince Charles, recently made an unannounced evening visit to Westminster Abbey to hear live musical performances as part of the preparation process.
No announcement has been made yet about the live entertainment at an evening reception at the palace to be hosted by Prince Charles for close friends of William and his bride.
The Associated Press contributed to this report.