Lining out or hymn lining, called precenting the line in Scotland, is a form of a cappella hymn-singing or hymnody in which a leader, often called the clerk or precentor, gives each line of a hymn tune as it is to be sung, usually in a chanted form giving or suggesting the tune. It can be considered a form of call and response. First referred to as "the old way of singing" in eighteenth-century Britain, it has influenced twentieth century popular music singing styles.