The concerto grosso (Italian for big concert(o), plural concerti grossi) is a form of baroque music in which the musical material is passed between a small group of soloists (the concertino) and full orchestra (the ripieno). This is in contrast to the concerto which features a single solo instrument with the melody line, accompanied by the orchestra.

The form developed in the late seventeenth century, although the name was not used at first. Alessandro Stradella seems to have written the first music in which two groups of different sizes are combined in the characteristic way. The name was first used by Giovanni Lorenzo Gregori in a set of 10 compositions published in Lucca in 1698.

The first major composer to use the term concerto grosso was Arcangelo Corelli. After Corelli's death, a collection of twelve of his concerti grossi was published; not long after, composers such as Francesco Geminiani, Pietro Locatelli and Giuseppe Torelli wrote concertos in the style of Corelli. He also had a strong influence on Antonio Vivaldi.

Grosso is a comune (municipality) in the Province of Turin in the Italian region Piedmont, located about 25 km northwest of Turin. As of 31 December 2004, it had a population of 1,002 and an area of 4.3 km².

Grosso borders the following municipalities: Corio, Mathi, Nole, and Villanova Canavese.

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Arcangelo Corelli (17 February 1653 – 8 January 1713) was an Italian violinist and composer of Baroque music.

Corelli was born at Fusignano, in the current-day province of Ravenna, although at the time it was in the province of Ferrara. Little is known about his early life. His master on the violin was Giovanni Battista Bassani, while Matteo Simonelli, the well-known singer of the pope's chapel, taught him composition.

He gained his first major success in Paris at the age of nineteen, and to this he owed his European reputation. From Paris, Corelli went to Germany. In 1681 he was in the service of the electoral prince of Bavaria; between 1680 and 1685 he spent a considerable time in the house of his friend and fellow violinist-composer Cristiano Farinelli.

In 1685 Corelli was in Rome, where he led the festival performances of music for Queen Christina of Sweden; he was also a favorite of Cardinal Pietro Ottoboni, grandnephew of another Cardinal Pietro Ottoboni, who in 1689 became Pope Alexander VIII. From 1689 to 1690 he was in Modena; the Duke of Modena was generous to him. In 1708 he returned to Rome, living in the palace of Cardinal Ottoboni. His visit to Naples, at the invitation of the king, took place in the same year.

Karl William Pamp Jenkins, CBE (born 17 February 1944) is a Welsh musician and composer.

Jenkins was born and raised in the Gower village of Penclawdd, in the county of Swansea, South Wales. His father, who was a local schoolteacher, chapel organist and choirmaster, gave him his initial musical instruction. Karl Jenkins attended Gowerton Grammar School.

Jenkins began his musical career as an oboist in the National Youth Orchestra of Wales. He went on to study music at Cardiff University, and then commenced postgraduate studies in London at the Royal Academy of Music, where he also met his wife and musical collaborator, Carol Barratt. He studied with Alun Hoddinott.

For the bulk of his early career Jenkins was known as a jazz and jazz-rock musician, playing baritone and soprano saxophones, keyboards and oboe, an unusual instrument in a jazz context. He joined jazz composer Graham Collier's group and later co-founded the jazz-rock group Nucleus, which won first prize at the Montreux Jazz Festival in 1970.

Pietro Antonio Locatelli (3 September 1695 – 30 March 1764) was an Italian composer and violinist.

Locatelli was born in Bergamo, Italy. A child prodigy on the violin, he was sent to study in Rome under the direction of Arcangelo Corelli. Little is known of his subsequent activities except that he finally settled in Amsterdam in 1729, where he died on 30 March 1764.

Locatelli's works are mainly for the violin, an instrument on which he was a virtuoso.

His most significant publication is probably L'arte del violino, opus 3. Printed in Amsterdam in 1733, this was one of the most influential musical publications of the early eighteenth century. It is a collection of twelve concertos for solo violin, strings and basso continuo, with a 'capriccio' for unaccompanied violin inserted into the first and last movements of each concerto as a sort of cadenza.

Locatelli also wrote violin sonatas, a cello sonata, trio sonatas, concerti grossi and a set of flute sonatas (his opus 2). His early works show the influence of Arcangelo Corelli, while later pieces are closer to Antonio Vivaldi in style.