Question: From what city was high-lying bass singer and conductor Gotthold Schwarz from?

full_context: Document 1: Rúni Brattaberg: Rúni Brattaberg (born 1966 in Vágur) is a bass opera singer from the Faroe Islands, who works in operas around the world. He has been building his repertoire with Wagner (Gurnemanz, Hagen, Hunding, Fafner, Pogner, Heinrich) and other leading bass roles such as Osmin/The Abduction from the Seraglio, Timur/Turandot, Sparafucile/Rigoletto, Sarastro/The Magic Flute, Kaspar/Der Freischütz, the Doctor/Wozzeck, Rocco/Fidelio, and Basilio/The Barber of Seville in the ensembles of the Mainz, Ulm, Detmold, Bern, and Mannheim opera companies. In January 2017 he received the Faroese Cultural Prize.
Document 2: Baritone: A baritone is a type of classical male singing voice whose vocal range lies between the bass and the tenor voice types. It is the most common male voice. Originally from the Greek βαρύτονος ("barýtonos") , meaning "deep (or heavy) sounding", music for this voice is typically written in the range from the second F below middle C to the F above middle C (i.e. F–F) in choral music, and from the second A below middle C to the A above middle C (A to A) in operatic music, but can be extended at either end. The baritone voice type is generally divided into the baryton-Martin baritone (light baritone), lyric baritone, "Kavalierbariton", Verdi baritone, dramatic baritone, "baryton-noble" baritone, and the bass-baritone.
Document 3: List of basses in non-classical music: The bass singing voice has a vocal range that lies around the second E below middle C to the E above middle C (i.e., E–E). As with the contralto singing voice being the rarest female voice type, the bass voice is the rarest for males, and has the lowest vocal range of all voice types. However, the bass voice is determined not only by its vocal range, but also by its timbre, which tends to be darker than that of a baritone voice.
Document 4: Gotthold Schwarz: Gotthold Schwarz (born 2 May 1952 in Zwickau) is a German bass-baritone singer and conductor. Based in Leipzig, he started as a member of the Thomanerchor and has conducted the Gewandhausorchester. He is the 17th Thomaskantor after Johann Sebastian Bach.
Document 5: Bass (voice type): A bass ( ) is a type of classical male singing voice and has the lowest vocal range of all voice types. According to "The New Grove Dictionary of Opera", a bass is typically classified as having a vocal range extending from around the second E below middle C to the E above middle C (i.e., E–E). Its tessitura, or comfortable range, is normally defined by the outermost lines of the bass clef. Categories of bass voices vary according to national style and classification system. Italians favour subdividing basses into the "basso cantante" (singing bass), "basso buffo" ("funny" bass), or the dramatic "basso profondo" (low bass). The American system identifies the bass-baritone, comic bass, lyric bass, and dramatic bass. The German "fach" system offers further distinctions: Spielbass (Bassbuffo), Schwerer Spielbass (Schwerer Bassbuffo), Charakterbass (Bassbariton), and Seriöser Bass. These classification systems can overlap. Rare is the performer who embodies a single "fach" without also touching repertoire from another category.
Document 6: 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 7: Bass-baritone: A bass-baritone is a high-lying bass or low-lying "classical" baritone voice type which shares certain qualities with the true baritone voice. The term arose in the late 19th century to describe the particular type of voice required to sing three Wagnerian roles: the Dutchman in "Der fliegende Holländer", Wotan/Der Wanderer in the "Ring Cycle" and Hans Sachs in "Die Meistersinger von Nürnberg". Wagner labelled these roles as "Hoher Bass" ("high bass")—see fach for more details.
Document 8: Chorale cantata (Bach): There are 52 chorale cantatas by Johann Sebastian Bach surviving in at least one complete version. Around 40 of these were composed during his second year as Thomaskantor in Leipzig, which started after Trinity Sunday 4 June 1724, and form the backbone of his chorale cantata cycle. The eldest known cantata by Bach, an early version of "Christ lag in Todes Banden", BWV 4, presumably written in 1707, was a chorale cantata. The last chorale cantata he wrote in his second year in Leipzig was "Wie schön leuchtet der Morgenstern", BWV 1, first performed on Palm Sunday, 25 March 1725. In the ten years after that he wrote at least a dozen further chorale cantatas and other cantatas that were added to his chorale cantata cycle.
Document 9: Heldenbaritone: A Heldenbaritone is an opera singer, a German dramatic baritone.
Document 10: Dramatic soprano: A dramatic soprano is a type of operatic soprano with a powerful, rich, emotive voice that can sing over, or cut through, a full orchestra. Thicker vocal folds in dramatic voices usually (but not always) mean less agility than lighter voices but a sustained, fuller sound. Usually this voice has a lower tessitura than other sopranos, and a darker timbre. They are often used for heroic, often long-suffering, tragic women of opera. Dramatic sopranos have a range from approximately low A (A) to "high C" (C). Some dramatic sopranos, known as Wagnerian sopranos, have an exceptionally big voice that can assert itself over a large orchestra (of more than 80 or even 100 pieces). These voices are substantial, often denser in tone, extremely powerful and, ideally, evenly balanced throughout the vocal registers. Wagnerian sopranos usually play mythic heroines. Successful Wagnerian sopranos are rare and often Wagnerian roles are performed by Italianate dramatic sopranos.
Document 11: 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.
Document 12: Günther von Schwarzburg (opera): Günther von Schwarzburg is a Singspiel in three acts by Ignaz Holzbauer set to a German libretto by Anton Klein. Loosely based on events in the life of the 14th-century German king, Günther von Schwarzburg, the opera premiered on 5 January 1777 at the Hoftheater in the Mannheim Palace.
Document 13: Alexandra Röseler: Alexandra Röseler is a German mezzo-soprano and pianist. She won the 1988 Schiller Prize of the Nationale Forschungs- und Gedenkstätten der klassischen Deutschen Literatur Weimar. After a period studying at the University of Magdeburg from 1992, she began a career as a concert pianist, performing for example Schumann's Piano Concerto. By the late 1990s, she had furthered her studies, studying vocal performance under Regina Werner at the University of Music and Theatre in Leipzig. Röseler has since appeared in numerous recordings and recitals of baroque music as a mezzo-soprano and alto and has performed regularly with the Thomanerchor. In 2003 she recorded Bach's cantata, "O heilges Geist- und Wasserbad", BWV 165, with Gotthold Schwarz, Thomanerchor, Gewandhausorchester, Heike Kumlin  and Martin Krumbiegel, singing the alto part.
Document 14: Johann Sebastian Bach: Johann Sebastian Bach (31 March [O.S. 21 March] 1685 28 July 1750) was a German composer and musician of the Baroque period. He is known for instrumental compositions such as the "Brandenburg Concertos" and the "Goldberg Variations", and vocal music such as the "St Matthew Passion" and the Mass in B minor. Since the 19th-century Bach Revival he has been generally regarded as one of the greatest composers of all time.
Document 15: 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.
ground_truth: Leipzig