Doxology - This term refers to a short prayer or hymn of praise that extols the glory and majesty of God.
Prelude - An introductory performance or piece of music that precedes a principal matter or event is called a prelude. It is oftentimes the music opening a church service or an introductory voluntary.
Interlude - This is a musical composition inserted between the parts of a longer composition or a religious service.
Postlude - This t he instrumental music played at the end of a church service or a performance.
Oratorio - It is a musical composition for solo voices, chorus, orchestra, and organ, to a religious text generally taken from Holy Scripture. The most prolific oratorio composers are Georg Freidrich Handel and Johann Sebastian Bach. The most famous oratorio ever written is Handel’s Messiah.
Chorale - This is originally a hymn of the Lutheran church sung by the entire congregation.
Spirituals - It is a term used for religious folk songs, usually of a deeply emotional character, created and first sung by African Americans in slavery.
Hymn - It is a type of song, specifically written for the purpose of praise, adoration or prayer. It is commonly used both in private devotions and in corporate worship.
Magnificat - (latin) Mary’s song of praise saying, "My soul doth magnify the Lord, and my spirit hath rejoiced in God my Saviour." - Luke 1:46-55. incorporated into the liturgical services of the Western churches (at Vespers) and of the Eastern Orthodox churches (at the morning services).
Requiem - It is a musical composition with a theme of prayer for salvation and redemption commonly used in masses immediately preceding a burial, and on occasions of more general remembrance.
Contemporary church music - This is a genre of popular music defined by its lyrical content performed for many purposes, ranging from aesthetic pleasure, religious or ceremonial purposes, or as an entertainment product for the marketplace. However, a common theme is praise, worship or thanks to God and/or Christ.