Renaissance music in the context of "Polyphony"

Musical improvisation (also known as musical extemporization) is the creative activity of immediate ("in the moment") musical composition, which combines performance with communication of emotions and instrumental technique as well as spontaneous response to other musicians. Sometimes musical ideas in improvisation are spontaneous, but may be based on chord changes in classical music and many other kinds of music. One definition is a "performance given extempore without planning or preparation". Another definition is to "play or sing (music) extemporaneously, by inventing variations on a melody or creating new melodies, rhythms and harmonies". Encyclopædia Britannica defines it as "the extemporaneous composition or free performance of a musical passage, usually in a manner conforming to certain stylistic norms but unfettered by the prescriptive features of a specific musical text." Improvisation is often done within (or based on) a pre-existing harmonic framework or chord progression. Improvisation is a major part of some types of 20th-century music, such as blues, rock music, jazz, and jazz fusion, in which instrumental performers improvise solos, melody lines and accompaniment parts.

Throughout the eras of the Western art music tradition, including the Medieval, Renaissance, Baroque, Classical, and Romantic periods, improvisation was a valued skill. J. S. Bach, Handel, Mozart, Beethoven, Chopin, Liszt, and many other famous composers and musicians were known especially for their improvisational skills. Improvisation might have played an important role in the monophonic period. The earliest treatises on polyphony, such as the Musica enchiriadis (ninth century), indicate that added parts were improvised for centuries before the first notated examples. However, it was only in the fifteenth century that theorists began making a hard distinction between improvised and written music.

Renaissance art (1350 – 1620) is the painting, sculpture, and decorative arts of the period of European history known as the Renaissance, which emerged as a distinct style in Italy in about AD 1400, in parallel with developments which occurred in philosophy, literature, music, science, and technology. Renaissance art took as its foundation the art of Classical antiquity, perceived as the noblest of ancient traditions, but transformed that tradition by absorbing recent developments in the art of Northern Europe and by applying contemporary scientific knowledge. Along with Renaissance humanist philosophy, it spread throughout Europe, affecting both artists and their patrons with the development of new techniques and new artistic sensibilities. For art historians, Renaissance art marks the transition of Europe from the medieval period to the Early Modern age.

The body of art, including painting, sculpture, architecture, music and literature identified as "Renaissance art" was primarily produced during the 14th, 15th, and 16th centuries in Europe under the combined influences of an increased awareness of nature, a revival of classical learning, and a more individualistic view of man. Scholars no longer believe that the Renaissance marked an abrupt break with medieval values, as is suggested by the French word renaissance, literally meaning "rebirth". In many parts of Europe, Early Renaissance art was created in parallel with Late Medieval art.

Secular music and sacred music were the two main genres of Western music during the Middle Ages and Renaissance era. The oldest written examples of secular music are songs with Latin lyrics. However, many secular songs were sung in the vernacular language, unlike the sacred songs that followed the Latin language of the Church, which is not to say there are not secular songs in Latin or not secular songs that are religious in theme.

In the Middle Ages, and even through the Renaissance and the Age of Enlightenment, any music that was not commissioned by the Catholic Church (or, later, a Protestant church) for liturgical use was and still is considered "secular music." Symphony No. 9 (Beethoven) (commonly called "Ode to Joy") and Messiah (Handel) are both examples of secular music because, despite being wholly and innately religious in theme, they were not commissioned by any church or for use in any religion's liturgy. Symphony No. 9 was commissioned by the Philharmonic Society of London for theater performance, not by the Catholic Church, the Church of England, or any other church and not for liturgical use. Likewise, "Messiah (Handel) was commissioned by the Duke of Devonshire to be performed in Dublin theaters for a series of charity concerts, not by the Catholic Church or any other church and not for liturgical use. So, while "secular" today is often taken to mean non-religious in any way, when it refers to music from the Middle Ages through as late as the 19th century, music with a religious theme may be and very often is "secular music" for the simple fact that it was not written on behalf of any commissioning church or for liturgical use, meaning "secular" does not indicate that it is thematically non-religious but that it is non-religious vis-à-vis a religious organization (i.e., the Church) did not commission its creation, sacred music being definitively music commissioned by the Church for liturgical use, for use by the Church in the Church's established rituals, the Church's ceremonies, and the Church's forms of worship, and any and all other music (i.e., music not fitting that strict definition) being secular music, no matter how religiously themed or gloriously worshipful of God it may be. A caveat: while these definitions of sacred music and secular music still hold true today when referring to such music from the past, they tend not to still hold true today for more modern music as any modern song that is themed in religious worship, regardless of if any church commissioned it or uses it in its liturgy, is not considered secular music, like Christian rock is not considered secular music today, but if it were somehow packed up and sent back to the 1500s, it would be considered secular music today because it would have been considered secular music back in the 1500s because of not being commission by the Church for liturgical use but by the artists themselves, or their labels, for their own personal or professional use and so would have come down through history to today as secular music.

Classical music generally refers to the art music of the Western world, considered to be distinct from Western folk music or popular music traditions. It is sometimes distinguished as Western classical music, as the term "classical music" can also be applied to non-Western art musics. Classical music is often characterized by formality and complexity in its musical form and harmonic organization, particularly with the use of polyphony. Since at least the ninth century, it has been primarily a written tradition, spawning a sophisticated notational system, as well as accompanying literature in analytical, critical, historiographical, musicological and philosophical practices.

Rooted in the patronage of churches and royal courts in Europe, surviving early medieval music is chiefly religious, monophonic and vocal, with the music of ancient Greece and Rome influencing its thought and theory. The earliest extant music manuscripts date from the Carolingian Empire (800–887), around the time which Western plainchant gradually unified into what is termed Gregorian chant. Musical centers existed at the Abbey of Saint Gall, the Abbey of Saint Martial and Saint Emmeram's Abbey, while the 11th century saw the development of staff notation and increasing output from medieval music theorists. By the mid-12th century, France became the major European musical center: the religious Notre-Dame school first fully explored organized rhythms and polyphony, while secular music flourished with the troubadour and trouvère traditions led by poet-musician nobles. This culminated in the court-sponsored French ars nova and Italian Trecento, which evolved into ars subtilior, a stylistic movement of extreme rhythmic diversity. Beginning in the early 15th century, Renaissance composers of the influential Franco-Flemish School built on the harmonic principles in the English contenance angloise, bringing choral music to new standards, particularly the mass and motet. Northern Italy soon emerged as the central musical region, where the Roman School engaged in highly sophisticated methods of polyphony in genres such as the madrigal, which inspired the brief English Madrigal School.

Medieval music encompasses the sacred and secular music of Western Europe during the Middle Ages, from approximately the 6th to 15th centuries. It is the first and longest major era of Western classical music and is followed by the Renaissance music; the two eras comprise what musicologists generally term as early music, preceding the common practice period. Following the traditional division of the Middle Ages, medieval music can be divided into Early (500–1000), High (1000–1300), and Late (1300–1400) medieval music.

Medieval music includes liturgical music used for the church, other sacred music, and secular or non-religious music. Much medieval music is purely vocal music, such as Gregorian chant. Other music used only instruments or both voices and instruments (typically with the instruments accompanying the voices).

Baroque music (UK: /bəˈrɒk/ or US: /bəˈroʊk/) refers to the period or dominant style of Western classical music composed from about 1600 to 1750. The Baroque style followed the Renaissance period, and was followed in turn by the Classical period after a short transition (the galant style). The Baroque period is divided into three major phases: early, middle, and late. Overlapping in time, they are conventionally dated from 1580 to 1650, from 1630 to 1700, and from 1680 to 1750. Baroque music forms a major portion of the "classical music" canon, and continues to be widely studied, performed, and listened to. The term "baroque" comes from the Portuguese word barroco, meaning "misshapen pearl". Key composers of the Baroque era include Johann Sebastian Bach, George Frideric Handel, Henry Purcell, Antonio Vivaldi, Georg Philipp Telemann, Domenico Scarlatti, Claudio Monteverdi, Girolamo Frescobaldi, Alessandro Scarlatti, Jean-Baptiste Lully, Jean-Philippe Rameau, Arcangelo Corelli, François Couperin, Heinrich Schütz, Dieterich Buxtehude, and Heinrich Ignaz Franz Biber.

The Baroque saw the formalization of common-practice tonality, an approach to writing music in which a song or piece is written in a particular key; this type of harmony has continued to be used extensively in Western classical and popular music. During the Baroque era, professional musicians were expected to be accomplished improvisers of both solo melodic lines and accompaniment parts. Baroque concerts were typically accompanied by a basso continuo group (comprising chord-playing instrumentalists such as harpsichordists and lute players improvising chords from a figured bass part) while a group of bass instruments—viol, cello, double bass—played the bassline. A characteristic Baroque form was the dance suite. While the pieces in a dance suite were inspired by actual dance music, dance suites were designed purely for listening, not for accompanying dancers.

Music performed a cappella (/ˌɑː kəˈpɛlə/ AH kə-PEL-ə, UK also /ˌæ kəˈpɛlə/ AK ə-PEL-ə, Italian: [a kkapˈpɛlla]; lit. 'in [the style of] the chapel'), less commonly spelled acapella in English, is music performed by a singer or a singing group without instrumental accompaniment. The term a cappella was originally intended to differentiate between Renaissance polyphonic and Baroque concertato musical styles. In the 19th century, a renewed interest in Renaissance polyphony, coupled with an ignorance of the fact that vocal parts were often doubled by instrumentalists, led to the term coming to mean unaccompanied vocal music. The term is also used, rarely, as a synonym for alla breve.