Question: When was the Italian composer died who is Marcel Maas repertoire except Bach to the moderns?

Context paragraphs:
Pietro Mascagni: Pietro Antonio Stefano Mascagni (] ; 7 December 1863 – 2 August 1945) was an Italian composer most noted for his operas. His 1890 masterpiece "Cavalleria Rusticana" caused one of the greatest sensations in opera history and single-handedly ushered in the "Verismo" movement in Italian dramatic music.  While it was often held that Mascagni, like Leoncavallo, was a "one-opera man" who could never repeat his first success, "L'amico Fritz" and "Iris" have remained in the repertoire in Europe (especially Italy) since their premieres.  Mascagni said that at one point, "Iris" was performed in Italy more often than "Cavalleria" (cf. Stivender).

Guercœur: Guercœur is an opera in three acts by the French composer Albéric Magnard to his own libretto.  It was first performed posthumously at the Paris Opéra on 24 April 1931, though it had mostly been written between 1897 and 1901.  The composer died trying to save his house from the invading Germans at the beginning of World War I in 1914 and the score was partially destroyed in the resulting fire.  Magnard's friend Guy Ropartz reconstructed the missing sections so the opera could be staged.  The music shows the strong influence of Wagner.

Arturo Cadore: Arturo Cadore (15 September 1877 – 25 June 1929) was an Italian composer and organist.  Born in Soresina (Province of Cremona), he primarily composed operettas and parlor songs.  He is also known for having completed Amilcare Ponchielli's opera "I Mori di Valenza" which had been left unfinished when the composer died in 1886 and was premiered posthumously in 1914.  In his later years he was the organist at the Chiesa di San Vittore in Olona (near Varese).  Cadore died in Gaggiano at the age of 51.

Klang (Stockhausen): Klang (] )—"Die 24 Stunden des Tages" (Sound—The 24 Hours of the Day) is a cycle of compositions by Karlheinz Stockhausen, on which he worked from 2004 until his death in 2007.  It was intended to consist of 24 chamber-music compositions, each representing one hour of the day, with a different colour systematically assigned to every hour.  The cycle was not yet finished when the composer died, so that the last three "hours" are lacking.  The 21 completed pieces include solos, duos, trios, a septet, and Stockhausen's last entirely electronic composition, "Cosmic Pulses".  The fourth composition is a theatre piece for a solo percussionist, and there are also two auxiliary compositions which are not part of the main cycle.  The completed works bear the work (opus) numbers 81–101.

Marcel Maas: Marcel Maas (7 May 1897 – 11 June 1950) was a Dutch-Belgian pianist.  He died at his home in Sint-Genesius-Rode, on 11 June 1950.  His repertoire includes Bach and Scarlatti to the moderns; he was an appreciated interpreter of the solo piano music of Franck, Debussy and Ravel.

Timoteo Pasini: Timoteo Pasini (7 August 1829 – 13 June 1888) was an Italian composer, conductor, and pianist.  He was born in Ferrara and died in Buenos Aires.  Although no longer in the repertoire, his operas "Imelda de' Lambertazzi" and "Giovanna Grey" had considerable success in their day.  His compositions in Buenos Aires included a funeral march for Giuseppe Garibaldi.

Domenico Scarlatti: Giuseppe Domenico Scarlatti (Naples, 26 October 1685 Madrid, 23 July 1757) was an Italian composer who spent much of his life in the service of the Portuguese and Spanish royal families.  He is classified primarily as a Baroque composer chronologically, although his music was influential in the development of the Classical style and he was one of the few Baroque composers to transition into the classical period.  Like his renowned father Alessandro Scarlatti, he composed in a variety of musical forms, although today he is known mainly for his 555 keyboard sonatas.

Francesco Corteccia: Francesco Corteccia (July 27, 1502 – June 7, 1571) was an Italian composer, organist, and teacher of the Renaissance.  Not only was he one of the best known of the early composers of madrigals, and an important native Italian composer during a period of domination by composers from the Low Countries, but he was the most prominent musician in Florence for several decades during the reign of Cosimo I de' Medici.

Amapola (song): "Amapola" is a 1920 song by Cádiz-born composer José María Lacalle García (later Joseph Lacalle), with Spanish lyrics.  After the composer died in 1937, English language lyrics were written by Albert Gamse.  In the 1930s, the song became a standard of the rhumba repertoire, later crossing-over into pop music charts.

Khovanshchina: Khovanshchina (Russian: Хованщина , "Hovánščina", sometimes rendered The Khovansky Affair; since the ending -ščina is pejorative) is an opera (subtitled a 'national music drama') in five acts by Modest Mussorgsky.  The work was written between 1872 and 1880 in St. Petersburg, Russia.  The composer wrote the libretto based on historical sources.  The opera was unfinished and unperformed when the composer died in 1881.

Supporting paragraphs: Marcel Maas Domenico Scarlatti
Answer: 23 July 1757