Question: Samuel Barber and Alban Berg are both what profession?

Context articles: Altenberg Lieder
Alban Berg Quartett
Wozzeck (Gurlitt)
Wozzeck
Konstantinos Papadakis (pianist)
Schliesse mir die Augen beide
Violin Concerto (Berg)
Samuel Barber
Walter Levin
Alban Berg

The Five Orchestral Songs (German: "Fünf Orchesterlieder, nach Ansichtkarten-Texten von Peter Altenberg" ), Op.
 4, for medium voice and orchestra, were composed by Alban Berg in 1911/12.
 Numbers 2 and 3 were premiered under the baton of Berg's teacher Arnold Schoenberg at the Vienna Musikverein on 31 March 1913, known as the "Skandalkonzert" for the riot that erupted during Berg's songs.
 The texts are taken from picture-postcard texts ('Ansichtskartentexte' in German ) by the contemporary Viennese poet Peter Altenberg (hence the more commonly used title Altenberg Lieder ).
 The texts deal with the stormy but beautiful condition of the soul, and the palpable sensations of love and longing.
 Berg's setting is for a large orchestra.
 The music has many displaced ostinati and the conflicted, lyrical passion found in much of Berg's works.
The Alban Berg Quartett was a string quartet founded in Vienna, Austria in 1970, named after Alban Berg.
Wozzeck (op. 16) is a 1926 German-language opera in 18 scenes and one epilogue by Manfred Gurlitt after the fragmentary "Woyzeck" by Georg Büchner.
 It was premiered 22 April 1926 in Bremen, four months after the better known opera "Wozzeck" by Alban Berg had been premiered at the Berlin State Opera on 14 December 1925.
 The two composers were unaware of each others projects, being among many artists stimulated by the publication of Büchner's play.
 Berg, unsettled by his publisher Universal Edition also publishing another opera on the same material so quickly reviewed Gurlitt's piano score, and in a letter to Erich Kleiber noted Gurlitt's work's quality and originality, but found the "broth" watered down.
 This verdict reflects Berg's own Wagnerian influences, while Gurlitt was nearer to the aesthetics of Paul Hindemith and Kurt Weill.
Wozzeck (] ) is the first opera by the Austrian composer Alban Berg.
 It was composed between 1914 and 1922 and first performed in 1925.
 The opera is based on the drama "Woyzeck", which was left incomplete by the German playwright Georg Büchner at his death.
 Berg attended the first production in Vienna of Büchner's play on 5 May 1914, and knew at once that he wanted to base an opera on it.
 From the fragments of unordered scenes left by Büchner, Berg selected fifteen to form a compact structure of three acts with five scenes each.
 He adapted the libretto himself, retaining "the essential character of the play, with its many short scenes, its abrupt and sometimes brutal language, and its stark, if haunted, realism..."
Konstantinos Papadakis (Greek: Κωνσταντίνος Παπαδάκης ; born October 2, 1972 in Heraklion, Crete, Greece) is a Greek pianist.
 He has received the Golden Medal of superior talent.
 He has performed in worldwide major concert halls such as Carnegie Hall and Wigmore Hall.
 He studied with Anthony di Bonaventura at Boston University.
 Three years later, he joined the piano faculty at Boston University and was later appointed a "Samuel Barber" Artist in Residence at West Chester University of Pennsylvania where he remained for 5 years.
 In 2011 he joined the piano faculty of the New England Conservatory's Pre-College Division in Boston.
 He holds the prestigious Motoko and Gordon Deane Principal Chair of Boston's Atlantic Symphony Orchestra.
 He has premiered many works, including Samuel Barber's "Three Essays", "Three Sketches", "Fresh from West Chester" and "Fantasy for two pianos".
 The "Boston Globe" has described him as "one of the greatest hopes of music".
 Celebrating the bicentennial year of Franz Liszt, he released a recording with short miniatures for piano entitled "The Short Liszt" to a critical acclaim.
 He is the director of the AASMA Piano Summer Academy in Archanes Crete, Greece.
 In 2013 was appointed lecturer at  Boston University College of Fine Arts.
"Schliesse mir die Augen beide" is a poem by Theodor Storm, twice set to music by Alban Berg.
 Berg composed his first setting in 1907, dedicating it to his future wife.
 The second version was composed in 1925 to celebrate the 25th anniversary of the Universal Edition music publisher.
 This second setting was Berg's first full-fledged 12 tone composition, and he re-used its tone row, or rather its secondary set, in the first movement of the "Lyric Suite" for string quartet of 1926.
Alban Berg's Violin Concerto was written in 1935 (the score is dated 11 August 1935).
 It is probably Berg's best-known and most frequently performed instrumental piece, in which the composer sought to reconcile diatonicism and dodecaphony.
 Berg composed it on a commission from Louis Krasner, and it became the last work that he completed.
 Krasner performed the solo part in the premiere at the Palau de la Música Catalana, Barcelona on 19 April 1936, after the composer's death.
Samuel Osborne Barber II (March 9, 1910 – January 23, 1981) was an American composer of orchestral, opera, choral, and piano music.
 He is one of the most celebrated composers of the 20th century: music critic Donal Henahan stated that "Probably no other American composer has ever enjoyed such early, such persistent and such long-lasting acclaim."
Walter Levin (December 6, 1924 – August 4, 2017) was the founder, first violinist, and guiding spirit of the LaSalle Quartet (active 1947–1987), which was known for its championing of contemporary composers, for its recordings of the Second Viennese School (Arnold Schoenberg, Alban Berg, and Anton Webern), as well as for its intellectually penetrating interpretations of the classical and romantic quartet repertory, in particular the late quartets of Beethoven.
 Levin was also an important pedagogue, having taught many of the world’s leading string quartets, among them the Alban Berg Quartet and the Arditti Quartet; other prominent students include the conductor James Levine, the violinist Christian Tetzlaff and the pianist Stefan Litwin.
Alban Maria Johannes Berg ( ; ] ; February 9, 1885 – December 24, 1935) was an Austrian composer of the Second Viennese School.
 His compositional style combined Romantic lyricism with twelve-tone technique.