Question: What is the profession shared by Philip Glass and Antonio Salieri 

full_context: Document 1: Philip Aaberg: Philip Aaberg (born April 8, 1949) is an American pianist and composer. He gained international recognition through a series of successful piano recordings released on Windham Hill Records. Although classically trained, Aaberg incorporates classical, jazz, bluegrass, rock, and new music elements into his compositions and musical structures. Although best known for his solo piano work, he is most at home in the chamber jazz genre. His compositions are noted for their "rigorous keyboard technique, diverse influences, and colorful compositional style."
Document 2: List of Classical-era composers: This is a list of composers of the Classical music era, roughly from 1730 to 1820. Prominent composers of the Classical era include Carl Philipp Emanuel Bach, Johann Stamitz, Joseph Haydn, Johann Christian Bach, Antonio Salieri, Muzio Clementi, Wolfgang Amadeus Mozart and Luigi Boccherini. Prominent composers of both the Classical and early Romantic eras include Ludwig van Beethoven and Franz Schubert.
Document 3: La passione di Gesù Cristo (Salieri): La passione di Gesù Cristo is an oratorio by composer Antonio Salieri that uses a libretto by Metastasio. While many composer's set music to this libretto, Metastasio is recorded to have said before Joseph II, Holy Roman Emperor that Salieri's setting "was the most expressive of any written on this poem." The work premiered in Vienna, Austria during the advent season of 1776.
Document 4: Steve Reich and Musicians: Steve Reich and Musicians, sometimes credited as the Steve Reich Ensemble, is a musical ensemble founded and led by the American composer Steve Reich (born 1936) to perform his compositions. This ensemble has premiered many of Reich's works and has performed his works more than any other. The ensemble received a Grammy Award in 1999.
Document 5: Antonio Vivaldi: Antonio Lucio Vivaldi (] ; 4 March 1678 – 28 July 1741) was an Italian Baroque composer, virtuoso violinist, teacher and cleric. Born in Venice, he is recognized as one of the greatest Baroque composers, and his influence during his lifetime was widespread across Europe. He composed many instrumental concertos, for the violin and a variety of other instruments, as well as sacred choral works and more than forty operas. His best-known work is a series of violin concertos known as "The Four Seasons".
Document 6: Glassworks (Glass): Glassworks is a chamber music work of six movements by Philip Glass. It is regarded as a characteristically Glass-like work. Following his larger-scale concert and stage works, "Glassworks" was Philip Glass's successful attempt to create a more pop-oriented "Walkman-suitable" work, with considerably shorter and more accessible pieces written for the recording studio. The studio album was released in 1982.
Document 7: Antonio Salieri: Antonio Salieri (] ; 18 August 17507 May 1825) was an Italian classical composer, conductor, and teacher. He was born in Legnago, south of Verona, in the Republic of Venice, and spent his adult life and career as a subject of the Habsburg Monarchy.
Document 8: Domenico Foroni: Domenico Foroni (10 July 1796 - 24 March 1853) was an Italian composer, conductor, and music educator. He was born in Valeggio sul Mincio into a family of landowners. On 7 November 1818 he married Teresa Zovetto with whom he had five children, two of whom became famous: the operatic soprano Antonietta Foroni-Conti (1822-187?) and the composer and conductor Jacopo Foroni (1825–1858). In 1818 he was appointed to the dual position of director and principal conductor of the Teatro Filarmonico in Verona, a position he held for over 25 years. He was also highly active as a teacher of singing and music composition in that city. Among his notable pupils were Gottardo Aldighieri, Paolo Bombardi, Domenico Conti, Carlo Pedrotti, Alessandro Sala, Maria Spezia-Aldighieri, and his children. Most of his compositional output was sacred music, the majority of which was written for services at the Verona Cathedral. Most of his music is now lost, but copies of his "Miserere" and "Messe" still exist
Document 9: Terry Riley: Terrence Mitchell "Terry" Riley ( ; born June 24, 1935) is an American composer and performing musician associated with the minimalist school of Western classical music, of which he was a pioneer. His work is deeply influenced by both jazz and Indian classical music.
Document 10: Philip Glass Ensemble: The Philip Glass Ensemble is a musical group founded by composer Philip Glass in 1968 to serve as a performance outlet for his experimental minimalist music. The Ensemble's instrumentation became a hallmark of Glass's early minimalist style. After Glass wrote his first opera, "Einstein on the Beach", for the Ensemble in 1976, he began to compose for other instrumentation more frequently, but he still retains the core ensemble instrumentation.
Document 11: Giulio Sabino: The opera, staged in six or seven European countries at the end of the 18th century, was the subject of a parody in Antonio Salieri's 1786 work "Prima la musica e poi le parole".
Document 12: Philip Johnson: Philip Cortelyou Johnson (July 8, 1906 – January 25, 2005) was an American architect, best known for his works of Modern architecture, including the Glass House in New Canaan, Connecticut, and his works of postmodern architecture, particularly 550 Madison Avenue which was designed for AT&T, and 190 South La Salle Street in Chicago. In 1978 he was awarded an American Institute of Architects Gold Medal and in 1979 the first Pritzker Architecture Prize.
Document 13: Antonio Vivaldi: Antonio Lucio Vivaldi (] ; 4 March 1678 – 28 July 1741) was an Italian Baroque composer, virtuoso violinist, teacher and cleric. Born in Venice, he is recognized as one of the greatest Baroque composers, and his influence during his lifetime was widespread across Europe. He composed many instrumental concertos, for the violin and a variety of other instruments, as well as sacred choral works and more than forty operas. His best-known work is a series of violin concertos known as "The Four Seasons".
Document 14: Tara Hugo Sings Philip Glass: Tara Hugo sings Philip Glass is a 2012 album by mezzo-soprano and actress Tara Hugo of songs of composer Philip Glass. The recording project was initiated by Glass himself who asked collaborator and producer Kurt Munkacsi to present pieces that Glass had composed for larger music ensembles as a song recital for small ensemble. The recital album includes songs Glass had composed with or for singers Leonard Cohen (Book of Longing), Natalie Merchant, Mick Jagger and poet Allen Ginsberg. The album also includes new arrangements by Trevor Gureckis of Glass instrumental music set to new lyrics written by Tara Hugo.
Document 15: Philip Glass: Philip Morris Glass (born January 31, 1937) is an American composer. He is widely regarded as one of the most influential musicians of the late 20th century.
ground_truth: composer, conductor