is found in every known culture, past and present, varying wildly between times and places. Scientists now believe that modern humans emerged from Africa 160,000 years ago. Around 50,000 years ago these humans began to disperse from Africa reaching all the habitable continents. Since all peoples of the world including the most isolated tribal groups, have a form of music, scientists conclude that music must have been present in the ancestral population prior to the dispersal of humans around the world. Consequently music must have been in existence for at least 50,000 years and the first music must have been invented in Africa and then evolved to become a fundamental constituent of human life.
A culture's music is influenced by all other aspects of that culture, including social and economic organization, climate, and access to technology. The emotions and ideas that music expresses, the situations in which music is played and listened to, and the attitudes toward music players and composers all vary between regions and periods. "Music history" is the distinct subfield of musicology and history which studies music (particularly western art music) from a chronological perspective.
Main article: Medieval music
While musical life was undoubtedly rich in the early Medieval era, as attested by artistic depictions of instruments, writings about music, and other records, the only repertory of music which has survived from before 800 to the present day is the plainsong liturgical music of the Roman Catholic Church, the largest part of which is called Gregorian chant. Pope Gregory I, who gave his name to the musical repertory and may himself have been a composer, is usually claimed to be the originator of the musical portion of the liturgy in its present form, though the sources giving details on his contribution, date from more than a hundred years after his death. Many scholars believe that his reputation has been exaggerated by legend. Most of the chant repertory was composed anonymously in the centuries between the time of Gregory and Charlemagne.
During the 9th century several important developments took place. First, there was a major effort by the Church to unify the many chant traditions, and suppress many of them in favor of the Gregorian liturgy. Second, the earliest polyphonic music was sung, a form of parallel singing known as organum. Third, and of greatest significance for music history, notation was reinvented after a lapse of about five hundred years, though it would be several more centuries before a system of pitch and rhythm notation evolved having the precision and flexibility that modern musicians take for granted.
Several schools of polyphony flourished in the period after 1100: the St. Martial school of organum, the music of which was often characterized by a swiftly moving part over a single sustained line; the Notre Dame school of polyphony, which included the composers Léonin and Pérotin, and which produced the first music for more than two parts around 1200; the musical melting-pot of Santiago de Compostela in Galicia, a pilgrimage destination and site where musicians from many traditions came together in the late Middle Ages, the music of whom survives in the Codex Calixtinus; and the English school, the music of which survives in the Worchester Fragments and the Old Hall Manuscript. Alongside these schools of sacred music a vibrant tradition of secular song developed, as exemplified in the music of the troubadours, trouvères and Minnesänger. Much of the later secular music of the early Renaissance evolved from the forms, ideas, and the musical aesthetic of the troubadours, courtly poets and itinerant musicians, whose culture was largely exterminated during the Albigensian Crusade in the early 13th century.
Forms of sacred music which developed during the late 13th century included the motet, conductus, discant, and clausulae. One unusual development was the Geisslerlieder, the music of wandering bands of flagellants during two periods: the middle of the 13th century (until they were suppressed by the Church); and the period during and immediately following the Black Death, around 1350, when their activities were vividly recorded and well-documented with notated music. Their music mixed folk song styles with penitential or apocalyptic texts.
The 14th century in European music history is dominated by the style of the ars nova, which by convention is grouped with the medieval era in music, even though it had much in common with early Renaissance ideals and aesthetics. Much of the surviving music of the time is secular, and tends to use the formes fixes: the ballade, the virelai, the lai, the rondeau, which correspond to poetic forms of the same names. Most pieces in these forms are for one to three voices, likely with instrumental accompaniment: famous composers include Guillaume de Machaut and Francesco Landini.