The origins of choral music are found in traditional music, as singing in big groups is extremely widely spread in traditional cultures (both singing in one part, or in unison, like in Ancient Greece, as well as singing in parts, or in harmony, like in contemporary European choral music). The oldest unambiguously choral repertory that survives is that of ancient Greece, of which the 2nd century BC Delphic hymns and the 2nd century AD. hymns of Mesomedes are the most complete. The original Greek chorus sang its part in Greek drama, and fragments of works by Euripides (Orestes) and Sophocles (Ajax) are known from papyri. The Seikilos epitaph (2c BC) is a complete song (although possibly for solo voice). One of the latest examples, Oxyrhynchus hymn (3c) is also of interest as the earliest Christian music.
At the turn of the 21st century, choral music has received a resurgence of interest partly due to a renewed interest in accessible choral idioms. Multi-cultural influences are found in Osvaldo Golijov's St. Mark Passion, which melds the Bach-style passion form with Latin American street music, and Chen Yi's Chinese Myths Cantata melds atonal idioms with traditional Chinese melodies played on traditional Chinese instruments. Some composers began to earn their reputation based first and foremost on their choral output, including the highly popular John Rutter and Eric Whitacre. The large scale dramatic works of Karl Jenkins seem to hearken back to the theatricality of Orff, and the music of James MacMillan continues the tradition of boundary-pushing choral works from the United Kingdom begun by Britten, Walton, and Leighton. Meanwhile, primarily media music composers such as John Williams and Kentaro Sato, and prominent concert orchestral composers such as Augusta Read Thomas, Sofia Gubaidulina, Aaron Jay Kernis, and Thomas Ades also contribute vital additions to the choral repertoire.