The importance of music in biblical religion is shown very simply by the fact that the verb "to sing" (with related words such as "song", and so forth) is one of the most commonly used words in the Bible. It occurs 309 times in the Old Testament and thirty-six in the New.
It is a fact that liturgical music is an integral part of the liturgy itself, not merely a means to assist or enrich worship. It is worship itself, like color to a sunset, like thought to the mind. Sacred music is not like prayer; it is prayer. Sacred music raises the mind and heart to God, and not only to our neighbor.