Church music

Church music is a broad genre of music written for Christian worship. It includes music performed during ecclesiastical liturgy, which are formal religious services. It also includes music set to words that express sacred ideas, such as hymns. This music serves many purposes in religious life. It can accompany rituals, help people share in a celebration, or express deep religious feelings.

Early Christian music began with communal singing. The Gospels record the disciples singing during their last meeting. Later, writers like Pliny the Younger noted Christians gathering before sunrise to sing hymns to Christ. This was often done through antiphonal psalmody. This is a method where two groups of performers alternate singing psalms. This technique likely came from ancient Israelite services. Some historians believe Ignatius of Antioch introduced this to Christian worship. He reportedly saw angels singing in alternate choirs in a vision. As the Church spread, it absorbed musical influences from Greece and the Mediterranean.

One of the most important traditions is Gregorian chant. This is a form of monophonic liturgical chant. Monophonic means the music consists of a single melodic line without harmony. This chant was central to monastic life. Monks followed the Rule of Saint Benedict, which required singing the Divine Service nine times a day. Most of this singing involved psalms. While legends say Pope Gregory the Great invented these melodies through divine intervention, scholars have a different view. They believe the chant resulted from a Carolingian synthesis of Roman and Gallican chant.

During the 12th and 13th centuries, this music was organized and written down. This process is called notation. It happened mainly in the Frankish lands of Europe. Even as more complex music styles like polyphony emerged, chant remained important. Polyphony is music with multiple independent melody lines. In Paris, composers like Léonin and Pérotin created organa, which used old chants as a base. Later, composers like François Couperin wrote Organ Masses that alternated between new styles and monophonic chant. Although it fell out of use after the Baroque period, chant saw a revival in the 19th century.

The Mass is another major form of church music. It sets the parts of the Eucharistic liturgy to music. The Mass can be performed a cappella, which means using only the human voice. It can also use instrumental obbligatos or even a full orchestra. Most traditional Masses use Latin, the language of the Catholic Church. However, many are written in the vernacular, or the local language, of the people. A full musical Mass must include five invariable sections called the Ordinary. These are the Kyrie, the Gloria, the Credo, the Sanctus, and the Agnus Dei.

There are also variable sections in a Mass called the Proper. These parts change based on the church calendar or specific seasons. Examples include the introit, gradual, Alleluia, offertory, and communion. A special version of the Mass is the Requiem, or the Mass of the Dead. This is a modified version of the Ordinary Mass. Many famous composers wrote notable Requiem works. These include Mozart, Verdi, and Brahms. These compositions are now often performed in concert halls rather than just in churches.

Carols are festive songs that are often religious but have a popular character. While many people associate them with Christmas, they were originally communal songs for many celebrations, like harvests. The tradition of Christmas carols dates back to the 13th century. Many carols use medieval chord progressions, which gives them a unique sound. Some songs, like "Angels from the Realms of Glory," come directly from the Middle Ages.

In the 19th century, carols became very popular again. This was helped by composers like Arthur Sullivan and the publication of books like "Christmas Carols Ancient and Modern" in 1833.

Hymns are songs used to praise God. Thomas Aquinas defined a hymn as the praise of God through song. Early hymns, called canticles, were often based on Bible passages. During the Protestant Reformation, two different views on hymns emerged. Some groups followed the regulative principle of worship. They believed only music directly authorized by the Bible should be used. This led to exclusive psalmody, where only psalms were chanted without instruments. Other reformers, like Martin Luther, encouraged congregational singing. Luther wrote many hymns, or chorales, to teach faith to his followers.