Question: Best known as a singer of Franz Schubert's Lieder, this german performer released productions with the German record label founded by whom?

full_context: Document 1: Lotte Lehmann: Charlotte "Lotte" Lehmann (February 27, 1888 – August 26, 1976) was a German soprano who was especially associated with German repertory. She gave memorable performances in the operas of Richard Strauss, Richard Wagner, Ludwig van Beethoven, Puccini, Mozart, and Massenet. The Marschallin in "Der Rosenkavalier", Sieglinde in "Die Walküre" and the title-role in "Fidelio" are considered her greatest roles. During her long career, Lehmann also made more than five hundred recordings. Her performances in the world of Lieder are considered among the best ever recorded.
Document 2: Vladimir Horowitz discography: The Russian-American classical virtuoso pianist Vladimir Horowitz was a recording artist for over 60 years; beginning in 1926 on a piano roll system for Welte-Mignon, then with audio recordings, starting in 1928 for the Victor Talking Machine Company, later RCA Victor. Horowitz continued to record for a variety of record labels throughout his life. Between 1962 and 1973 he recorded for Columbia Masterworks In 1975, Horowitz returned to RCA, with which he recorded a series of live recitals. For the last years of his life, between 1985 and 1989, Horowitz recorded for Deutsche Grammophon. Horowitz’s final recording, with Sony Classical, was completed in November 1989, four days before his death. This final recording consisted of repertoire that he had never previously recorded.
Document 3: Philips Classics Records: Philips Classics Records was started in the 1980s as the new classics record label for Philips Records. It was successful with artists including Alfred Brendel, Sir John Eliot Gardiner, Sir Neville Marriner and the Academy of St. Martin in the Fields, Mitsuko Uchida, Julian Lloyd Webber, Sir Colin Davis and André Rieu.
Document 4: Orfeo (record label): Orfeo International Music GmbH of Munich is a German classical record label founded in 1979 by Axel Mehrle and launched in 1980. It has released many classical own productions with artists as Carlos Kleiber, Wolfgang Sawallisch, Rafael Kubelik, Colin Davis, Bernard Haitink, Kurt Eichhorn, Christian Thielemann, Andris Nelsons, Dietrich Fischer-Dieskau (both as singer and conductor), Jessye Norman, Julia Varady, Margaret Price, Lucia Popp, Diana Damrau, Edita Gruberova, Grace Bumbry, Brigitte Fassbaender, Agnes Baltsa, Carlo Bergonzi, Peter Schreier, Piotr Beczala, Renato Bruson, Bernd Weikl, Kurt Moll, Dmitry Sitkovetsky, Josef Bulva, Oleg Maisenberg, Mischa Maisky, Julius Berger, Karl Leister, Aurele Nicolet etc. In addition, it has a well-known sub-label "ORFEO D'OR", publishing legendary live performances from the archives of the Salzburg Festival, the Bayreuth Festival, the Bavarian State Opera, the Vienna State Opera, the Bavarian Radio Symphony Orchestra etc. Further, it has produced two records with the late Heinz Ruehmann. Many of the publications have been critically acclaimed and have received important awards.
Document 5: Dietrich Fischer-Dieskau: Dietrich Fischer-Dieskau (28 May 192518 May 2012) was a German lyric baritone and conductor of classical music, one of the most famous Lieder (art song) performers of the post-war period, best known as a singer of Franz Schubert's Lieder, particularly ""Winterreise"" of which his recordings with accompanist Gerald Moore and Jörg Demus are still critically acclaimed half a century after their release.
Document 6: Elisabeth Schwarzkopf: Dame Olga Maria Elisabeth Friederike Schwarzkopf, DBE (9 December 19153 August 2006) was a German soprano. She was among the foremost singers of lieder, and was renowned for her performances of Viennese operetta, as well as the operas of Mozart, Wagner and Richard Strauss After retiring from the stage, she was a voice teacher internationally. She is considered one of the greatest sopranos of the 20th Century.
Document 7: Willi Domgraf-Fassbaender: Willi Domgraf-Fassbaender (19 February 1897, Aachen - 13 February 1978, Nuremberg) was a German operatic baritone, particularly associated with Mozart and Verdi roles. He is considered to have been one of the best lyric baritones of the inter-war period.
Document 8: Channel Classics Records: Channel Classics Records is a record label from the Netherlands, specializing in classical music. The managing director and producer is C. Jared Sacks, who grew up in Boston. Sacks was schooled as a professional horn player at the Oberlin Conservatory of Music and the Conservatorium van Amsterdam. With fifteen years of experience in making music, Sacks decided to turn his hobby of making musical recordings into his work in 1987. The record label started in 1990 and was called after the street where he lived at the time, the Kanaalstraat in Amsterdam.
Document 9: Siegfried Lorenz: Siegfried Lorenz (born 1945) is a German opera and concert singer. A baritone, he is particularly noted for his recordings of the lieder of Franz Schubert. He was the first to be appointed a permanent soloist at the Leipzig Gewandhaus.
Document 10: Winterreise: Winterreise ("Winter Journey") is a song cycle for voice and piano by Franz Schubert (D. 911, published as Op. 89 in 1828), a setting of 24 poems by Wilhelm Müller. It is the second of Schubert's two great song cycles on Müller's poems, the earlier being "Die schöne Müllerin" (D. 795, Op. 25, 1823). Both were originally written for tenor voice but are frequently transposed to suit other vocal ranges – the precedent being established by Schubert himself. These two works have posed interpretative demands on listeners and performers due to their scale and structural coherence. Although Ludwig van Beethoven's cycle "An die ferne Geliebte" ("To the Distant Beloved") had been published earlier, in 1816, Schubert's two cycles hold the foremost place in the history of the genre.
Document 11: Hermann Prey: Hermann Prey (] Berlin, 11 July 1929 – Krailling, 22 July 1998) was a German lyric baritone, who was equally at home in the Lied, operatic and concert repertoires. His American debut was in November 1952, with the Philadelphia Orchestra and Eugene Ormandy, and his American recital debut took place in 1956, at New York's Carnegie Hall. As a Lieder singer, he was a gifted interpreter of Schubert, including his song-cycles "Die schöne Müllerin" and "Die Winterreise" and the collection of songs "Schwanengesang", but also of Robert Schumann, Richard Strauss and Gustav Mahler. He also appeared frequently as a soloist in Bach's "Passions" and Brahms' "A German Requiem".
Document 12: Wilhelm Müller: Johann Ludwig Wilhelm Müller (7 October 1794 – 30 September 1827) was a German lyric poet, most well known as the author of Die schöne Müllerin and Winterreise, the famous Franz Schubert song cycles.
Document 13: Classical Barbra: Classical Barbra is a studio album by Barbra Streisand, released in February 1976 but recorded in 1973. The album consists of songs by classical European composers and includes tracks sung in English, French, Occitan, German, Italian and Latin. The music is performed by the Columbia Symphony Orchestra, conducted by Claus Ogerman. Leonard Bernstein wrote of the album, "Barbra Streisand's natural ability to make music takes her over to the classical field with extraordinary ease. It's clear that she loves these songs. In her sensitive, straightforward, and enormously appealing performance, she has given us a very special musical experience." The album has been certified Gold in the United States for sales of 500,000 on May 5, 1999. In 2013 the album was remastered and 2 bonus tracks were added.
Document 14: Gerald Moore: Gerald Moore CBE (30 July 1899 – 13 March 1987) was an English classical pianist best known for his career as an accompanist for many famous musicians. Among those with whom he was closely associated were Dietrich Fischer-Dieskau, Elisabeth Schumann, Hans Hotter, Elisabeth Schwarzkopf, Victoria de los Ángeles and Pablo Casals.
Document 15: Ekkehard Abele: Ekkehard Abele is a German operatic bass-baritone. He first gained recognition when he won the International Bach Competition in Leipzig in 1996. Since then, he has recorded a number of works by Bach under such conductors as Tobias Ziemlichklein Hiller, Werner Hümmeke, Ton Koopman, and Hermann Max. He has also sung in operas at the Staatstheater Saarbrücken and the Münchner Opernfestspiele. In the 2007–8 season, he performed with the Rotterdam Philharmonic Orchestra conducted by Yannick Nézet-Séguin and the Netherlands Philharmonic Orchestra conducted by Sir Colin Davis.
ground_truth: Axel Mehrle