Monophony
In music, monophony is the simplest of musical textures, consisting of a melody (or "tune"), typically sung by a single singer or played by a single instrument player (e.g., a flute player) without accompanying harmony or chords. Many folk songs and traditional songs are monophonic. A melody is also considered to be monophonic if a group of singers (e.g., a choir) sings the same melody together at the unison (exactly the same pitch) or with the same melody notes duplicated at the octave (such as when men and women sing together). If an entire melody is played by two or more instruments or sung by a choir with a fixed interval, such as a perfect fifth, it is also said to be monophony (or "monophonic"). The musical texture of a song or musical piece is determined by assessing whether varying components are used, such as an accompaniment part or polyphonic melody lines (two or more independent lines).
For other uses, see Monophony (disambiguation).
In the Early Middle Ages, the earliest Christian songs, called plainchant (a well-known example is Gregorian chant), were monophonic. Even into the twenty-first century, songwriters still often write songs that intersperse sections using monophony, heterophony (two singers or instrumentalists doing varied versions of the same melody together), polyphony (two or more singers or instrumentalists playing independent melodic lines at the same time), homophony (a melody accompanied by chords), or monody (a single melodic line with instrumental accompaniment) elements throughout the melody to create different atmospheres and styles. Monophony may not have underlying rhythmic textures, and must consist of only a single melodic line.
According to Ardis Butterfield (1997), monophony "is the dominant mode of the European vernacular genres as well as of Latin song ... in polyphonic works, it remains a central compositional principle."[2]
Western singing[edit]
Plainchant[edit]
The earliest recorded Christian monophony was plainchant or plainsong (of which one well-known style was called Gregorian chant) a single unaccompanied vocal melody sung by monks. Sung by multiple voices in unison (i.e. the same pitch and rhythm), this music is still considered monophonic. Plainsong was the first and foremost musical style of Italy, Ireland, Spain, and France. In the early 9th century, the organum tradition developed by adding voices in parallel to plainchant melodies. The earliest organum merely augmented the texture of the melody by adding a second voice in parallel octaves or parallel fifths, which could still be considered monophonic; however, by the 11th century the organum had developed a style called "free organum" in which the voices were more independent, evolving into a polyphonic tradition.
Monophony with instrumental doubling[edit]
See Voicing (music)#Doubling
DeLone[6] more loosely defines monophony as "passages, movements, or sections in which notes sound alone, despite instrumental doubling" even if "such passages may involve several instruments or voices."
Indian classical music is an ancient musical tradition where monophonic melodies called ragas are played over drones, sometimes accompanied by percussion and other accompaniment.