Question: What is the name of a  kit violin and an opera?
Context: Katherine Matilda "Kit" Hunter is a fictional character from the Australian Channel Seven soap opera "Home and Away", played by Amy Mizzi.  Kit made her first on-screen appearance on 25 April 2003 and made her final appearance as a regular character in February 2004 but continued to reappear in a recurring capacity, making her final appearance on 3 July 2007.  Kit's storylines have included battling alcoholism, falling for Noah Lawson, being stranded in the bush with Kim Hyde and subsequently falling pregnant with his baby. Marcel Mihalovici (Bucharest, 22 October 1898 – Paris, 12 August 1985) was a French composer born in Romania.  He was discovered by George Enescu in Bucharest.  He moved to Paris in 1919 (at age 21) to study under Vincent d'Indy.  His works include his "Sonata number 1 for violin and piano" (1920), "Mélusine" opera (1920, libretto by Yvan Goll), his "1st string quartet" (1923), "2nd string quartet" (1931), "Sonata number 2 for violin and piano" (1941), "Sonata for violin and cello" (1944), "Phèdre" Opera (1949), "Étude in two parts for piano and instrumental ensemble" (1951) and "Esercizio per archi" (1960).  Many of his piano works were first performed by his wife, the concert pianist Monique Haas. Sergei Prokofiev began his Violin Concerto No. 1 in D major, opus 19, as a concertino in 1915 but soon abandoned it to work on his opera "The Gambler".  He returned to the concerto in the summer of 1917.  It premiered on October 18, 1923 at the Paris Opera with Marcel Darrieux playing the violin part and the Paris Opera Orchestra conducted by Serge Koussevitzky.  Igor Stravinsky made his debut as conductor at the same concert, conducting the first performance of his own Octet for Wind Instruments. The violin is a wooden string instrument in the violin family.  It is the smallest and highest-pitched instrument in the family in regular use.  Smaller violin-type instruments are known, including the violino piccolo and the kit violin, but these are virtually unused in the 2010s.  The violin typically has four strings tuned in perfect fifths, and is most commonly played by drawing a bow across its strings, though it can also be played by plucking the strings with the fingers (pizzicato).  Violins are important instruments in a wide variety of musical genres.  They are most prominent in the Western classical tradition and in many varieties of folk music.  They are also frequently used in genres of folk including country music and bluegrass music and in jazz.  Electric violins are used in some forms of rock music; further, the violin has come to be played in many non-Western music cultures, including Indian music and Iranian music.  The violin is sometimes informally called a fiddle, particularly in Irish traditional music and bluegrass, but this nickname is also used regardless of the type of music played on it. The kit violin, dancing master's kit, or kit, is a stringed instrument.  It is essentially a very small violin, designed to fit in a pocket – hence its other common name, the pochette (French for "small pocket").  It was used by dance masters in royal courts and other places of nobility, as well as by street musicians until around the 18th century.  Occasionally, the rebec was used in the same way.  Several are called for (as "violini piccoli alla francese" – small French violins) in Monteverdi's 1607 "Orfeo". Susanne Lautenbacher (born 19 April 1932, in Augsburg) is a German violinist.  She studied violin with the Munich-based violin pedagogue Karl Freund (first violin of the Freund Quartet) and later with Henryk Szeryng.  She was a prizewinner in the early years of the Munich ARD Violin Competition.  On some early recordings her name appears as Suzanne or Susi. Kit Carson Peak is a high mountain summit of the Crestones in the Sangre de Cristo Range of the Rocky Mountains of North America.  Officially designated Kit Carson Mountain, the 14171 ft fourteener is located 8.4 km east by south (bearing 102°) of the Town of Crestone in Saguache County, Colorado, United States.  The name Kit Carson Mountain is used for both the massif with three summits (Columbia Point, Kit Carson Peak and Challenger Point), or to describe the main summit only.  The mountain is named in honor of frontiersman Christopher Houston "Kit" Carson.  The Crestones are a cluster of high summits in the Sangre de Cristo Range, comprising Crestone Peak, Crestone Needle, Kit Carson Peak, Challenger Point, Humboldt Peak, and Columbia Point.  They are usually accessed from common trailheads. Alternative Cars Limited is a New Zealand-based kit car company that manufactures fiber-glass bodied cars based on the 1950s MG TF.  The company was founded by Russell Hooper, a medical supply representative, as Kit Kars Limited in 1984.  In 1996 Kit Kars Ltd changed its name to Alternative Cars Limited.  Initially the company operated from the owner's home, until moving to a small 600 square foot workshop in Auckland. L'Orfeo (SV 318) (] ), sometimes called La favola d'Orfeo ] , is a late Renaissance/early Baroque "favola in musica", or opera, by Claudio Monteverdi, with a libretto by Alessandro Striggio.  It is based on the Greek legend of Orpheus, and tells the story of his descent to Hades and his fruitless attempt to bring his dead bride Eurydice back to the living world.  It was written in 1607 for a court performance during the annual Carnival at Mantua.  While Jacopo Peri's "Dafne" is generally recognised as the first work in the opera genre, and the earliest surviving opera is Peri's "Euridice", "L'Orfeo" is the earliest that is still regularly performed. The Vaccine Investigation and OnLine Information Network (VIOLIN) is the largest web-based vaccine database and analysis system.  VIOLIN currently contains over 3,000 vaccines or vaccine candidates for over 190 pathogens.  The vaccine information in the database is collected by manual curation from over 1,600 peer-reviewed papers.  Different from most existing vaccine databases, VIOLIN focuses on vaccine research data.  Different types of information is curated, including vaccine name, license status, antigens used, vaccine adjuvants, vaccine vectors, vaccination procedure, host immune response, challenge procedure, vaccine efficacy, adverse events, etc.  All vaccine information in the VIOLIN vaccine database is supported by quoted references.  The data generated by a curator is published only after a careful review and approval by a vaccine domain expert.
Answer: L'Orfeo