Gregorian Chant is a form of plainchant used in the liturgy of the Roman Catholic Church. It is characterized by its monophonic, unaccompanied vocal music, which is sung in Latin. The melodies are often modal and feature free-flowing rhythms, creating a meditative atmosphere that enhances the spiritual experience of worship. Originating in the early Middle Ages, Gregorian Chant is named after Pope Gregory I, who is traditionally credited with organizing the chant repertoire. This ancient musical tradition has influenced many genres of music and continues to be performed in religious settings today.