Religious music at Wikipedia http://en.wikipedia.org/wiki/Religious_Music Religious music at Wikipedia
Religious music (also sacred music) is music performed or composed for religious use or through religious influence.
A lot of music has been composed to complement religion, and many composers have derived inspiration from their own religion. Many forms of traditional music have been adapted to fit religions' purposes or have descended from religious music.
There is a long history of Christian Church music. Johann Sebastian Bach, considered one of the most important and influential European classical music composers, wrote most of his music for the Lutheran church.
Religious music often changes to fit the times; Contemporary Christian music, for example, uses idioms from various secular popular music styles but with religious lyrics. Gospel music has always done this, for example incorporating funk, and continues to do so.