Classical period (music) in the context of "Musical phrasing"

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.

Articulation is a musical parameter that determines how a single note or other discrete event is sounded. Articulations primarily structure an event's start and end, determining the length of its sound and the shape of its attack and decay. They can also modify an event's timbre, dynamics, and pitch. Musical articulation is analogous to the articulation of speech, and during the Baroque and Classical periods it was taught by comparison to oratory.

Western music has a set of traditional articulations that were standardized in the 19th century and remain widely used. Composers are not limited to these, however, and may invent new articulations as a piece requires. When writing electronic and computer music, composers can design articulations from the ground up.

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.

Wolfgang Amadeus Mozart (27 January 1756 – 5 December 1791) was a prolific and influential composer of the Classical period. Despite his short life, his rapid pace of composition and proficiency from an early age resulted in more than 800 works representing virtually every Western classical genre of his time. Many of these compositions are acknowledged as pinnacles of the symphonic, concertante, chamber, opera, and choral repertoires. Mozart is widely regarded as one of the greatest composers in the history of Western music, with his music admired for its "melodic beauty, its formal elegance and its richness of harmony and texture".

Born in Salzburg, Mozart showed prodigious ability from his earliest childhood. At age five, he was already competent on keyboard and violin, had begun to compose, and performed before European royalty. His father, Leopold Mozart, took him on a grand tour of Europe and then three trips to Italy. At 17, he was a musician at the Salzburg court but grew restless and travelled in search of a better position. Mozart's fruitless journey in search of employment led him to Paris, Mannheim, Munich, and eventually back to Salzburg. During this time he wrote his five violin concertos, the Sinfonia Concertante, and Concerto for Flute and Harp, as well as sacred pieces and masses, the motet Exsultate Jubilate, and the opera Idomeneo, among other works.

Ludwig van Beethoven (baptised 17 December 1770 – 26 March 1827) was a German composer and pianist. One of the most revered figures in the history of Western music, his works rank among the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era. Beethoven's early period, during which he forged his craft, is typically considered to have lasted until 1802. From 1802 to around 1812, his middle period showed an individual development from the styles of Joseph Haydn and Wolfgang Amadeus Mozart, and is sometimes characterised as heroic. During this time, Beethoven began to grow increasingly deaf. In his late period, from 1812 to 1827, he extended his innovations in musical form and expression.

Born in Bonn, Beethoven displayed his musical talent at a young age. He was initially taught intensively by his father, Johann van Beethoven, and later by Christian Gottlob Neefe. Under Neefe's tutelage in 1783, he published his first work, a set of keyboard variations. He found relief from a dysfunctional home life with the family of Helene von Breuning, whose children he loved, befriended, and taught piano. At age 21, he moved to Vienna, which subsequently became his base, and studied composition with Haydn. Beethoven then gained a reputation as a virtuoso pianist, and was soon patronised by Karl Alois, Prince Lichnowsky for compositions, which resulted in his three Opus 1 piano trios (the earliest works to which he accorded an opus number) in 1795.

The rondo or rondeau is a musical form that contains a principal theme (sometimes called the "refrain") which alternates with one or more contrasting themes (generally called "episodes", but also referred to as "digressions" or "couplets"). Some possible patterns include: ABACA, ABACAB, ABACBA, or ABACABA (with the letter 'A' representing the refrain).

The rondo form emerged in the Baroque period and became increasingly popular during the Classical period. The earliest examples of compositions employing rondo form are found within Italian operatic arias and choruses from the first years of the 17th century. These examples use a multi-couplet rondo or "chain rondo" (ABACAD) known as the Italian rondo. Rondo form, also known in English by its French spelling rondeau, should not be confused with the unrelated but similarly-named forme fixe rondeau, a 14th- and 15th-century French poetic and chanson form.

Carl Maria Friedrich Ernst von Weber (c. 18 November 1786 – 5 June 1826) was a German composer, conductor, virtuoso pianist, guitarist, and critic in the late Classical and early Romantic eras. Best known for his operas, he was a crucial figure in the development of German Romantische Oper (German Romantic opera).

Throughout his youth, his father, Franz Anton [de], relentlessly moved the family between Hamburg, Salzburg, Freiberg, Augsburg and Vienna. Consequently he studied with many teachers—his father, Johann Peter Heuschkel, Michael Haydn, Giovanni Valesi, Johann Nepomuk Kalcher, and Georg Joseph Vogler—under whose supervision he composed four operas, none of which survive complete. He had a modest output of non-operatic music, which includes two symphonies, two concertos and a concertino for clarinet and orchestra, a bassoon concerto, a horn concertino, two concertos and a Konzertstück for piano and orchestra, piano pieces such as Invitation to the Dance; and many pieces that featured the clarinet, usually written for the virtuoso clarinetist Heinrich Baermann.