Here are the guidelines from the church on musical numbers in Sacrament Meetings. We will follow these:
Appropriate music is a vital part of Church meetings, particularly sacrament meetings. Music that is carefully selected and properly presented can greatly enhance the spirit of worship. Music should be worshipful and fit the spirit of the meeting. Priesthood leaders determine what is suitable.
The hymns are the basic music for worship services and are standard for all congregational singing. In addition, other appropriate selections may be used for prelude and postlude music, choir music, and special musical presentations. If musical selections other than the hymns are used, they should be in keeping with the spirit of the hymns of the Church. Texts should be doctrinally correct. (See “Hymns for Congregations,” Hymns, pages 380–81.)
Secular music should not replace sacred music in Sunday meetings. Some religiously oriented music presented in a popular style is not appropriate for sacrament meetings. Also, much sacred music that is suitable for concerts and recitals is not appropriate for a Latter-day Saint worship service.
Music in Church meetings should not draw attention to itself or be for demonstration. This music is for worship, not performance.
Organs and pianos, or their electronic equivalents, are the standard instruments used in Church meetings. If other instruments are used, their use should be in keeping with the spirit of the meeting. Instruments with a prominent or less worshipful sound, such as most brass and percussion, are not appropriate for sacrament meeting.
Live accompaniment is normally used in sacrament and other ward meetings. If a piano, organ, or accompanist is not available, appropriate recordings may be used. Music in Church meetings should usually be sung in the language of the congregation.
Standard Music Elements in Church Meetings
Prelude and Postlude Music
Quiet prelude and postlude music creates an atmosphere of worship that invites the Spirit into Church meetings. The organist or pianist usually plays hymns or other appropriate music for five to ten minutes before and after a meeting. Playing hymns helps members review gospel teachings in their minds.
Congregational Singing
Most Church meetings are enhanced by the singing of hymns. Music provides a primary means by which members participate in Church worship services. Congregational singing has a unique and often underused power for unifying members as they worship together. As appropriate, a priesthood leader may ask a congregation to stand for an intermediate hymn or a national anthem. (See Hymns, 380-81).
Special Musical Selections
Musical selections may be presented by choirs, vocal and instrumental soloists, and small groups. Hymns and other appropriate selections may be used.