Problem: The Vienna Boys' Choir (German: Wiener Sangerknaben) or Vienna Choir Boys is a choir of boy sopranos and altos based in Vienna, Austria. It is one of the best known boys' choirs in the world. The boys are selected mainly from Austria, but also from many other countries. The choir is a private, not-for-profit organization.

The choir is the modern-day descendant of the boys' choirs of the Viennese Court, dating back to the late Middle Ages. The choir was, for practical purposes, established by a letter from Emperor Maximilian I of Habsburg on 30 June 1498, instructing court officials to employ a singing master, two basses and six boys. Jurij Slatkonja became the director of the ensemble. The role of the choir (numbering between 24 and 26) was to provide musical accompaniment for the church mass. Additionally, the Haydn brothers were members of the St. Stephen's Cathedral choir, directed at the time by Georg Reutter II, who used this choir in his duties for the imperial court, which at the time had no boy choristers of its own.  Over the centuries, the choir has worked with many composers, including Heinrich Isaac, Hofhaimer, Biber, Fux, Caldara, Gluck, Salieri, Mozart, Franz Schubert and Bruckner.  In 1920, following the fall of the Austrian Empire, the Hofkapelle (court orchestra) was disbanded. However, the rector at the time, Josef Schnitt, sought a continuation of the tradition. In 1924, the Vienna Boys' Choir was officially founded, and it has evolved into a professional music group. The choir adopted the now-famous blue and white sailor suit, replacing the imperial military cadet uniform that included a dagger. The composer HK Gruber is one of the graduates of the reformed choir.  Since 1948, the Palais Augarten has served as their rehearsal venue and boarding school, which goes from kindergarten level up to middle school level.  In 1961, Walt Disney filmed Almost Angels, a fictional drama about (and starring) the Vienna Boys' Choir, set and filmed in the Palais Augarten. It was Disney who, for cinematographic reasons, persuaded the Austrian government to allow the boys to legally wear the Austrian national emblem on the breast of their uniform, a tradition that continues to this day.

Who was the singing master?

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Question:
"Trapped in the Closet" is the twelfth episode in the ninth season of the American animated television series South Park. The 137th episode of the series overall, it originally aired on Comedy Central in the United States on November 16, 2005. In the episode, Stan joins Scientology in an attempt to find something "fun and free". After the discovery of his surprisingly high "thetan levels", he is recognized as the reincarnation of L. Ron Hubbard, the founder of the church.
South Park had previously parodied Scientology in a spoof at the 2000 MTV Movie Awards. The MTV short was titled "The Gauntlet" and included "John Travolta and the Church of Scientology" arriving in a spaceship to defeat Russell Crowe (as a gladiator) and attempt to recruit the boys into Scientology. Travolta, along with his fellow Scientologists, was depicted as a Psychlo, as he appeared in the film Battlefield Earth. They had also made fun of Scientology in an earlier episode, titled "Super Best Friends", in which David Blaine formed his own cult, called "Blaintology". Parker and Stone have acknowledged that this is meant to be a reference to Scientology.  Parker stated that Isaac Hayes' membership had previously kept the show's creators from writing a full episode which parodies Scientology. However, the decision to ultimately produce a South Park episode satirizing Scientology was partially inspired by the friendship the show's creators have with Penn Jillette. Jillette was originally planning to do an episode of Bullshit! based on Scientology, but Showtime prohibited him from doing so to avoid the possibility of legal action from the Church of Scientology. Parker commented, "We're going, That's fucked up. And hearing other people say, 'You can't do that' - you can only say 'You can't do that' so many times to Matt and me before we're gonna do it. Finally, we just had to tell Isaac, 'Dude, we totally love working with you, and this is nothing personal, it's just we're South Park, and if we don't do this, we're belittling everything else we've ripped on.'"  Although some questions were raised prior to the episode's screening about whether it was wise to take swipes at Cruise and Scientology, Comedy Central declared that it supported Stone and Parker. A Comedy Central spokesman told Radar magazine in November 2005 that "they are free, and have been, to satirize anybody and anything they want to. They've made fun of MTV, they've made fun of Viacom, they've made fun of Comedy Central, and we've never interfered with them."  During production on the episode, investigative journalist Mark Ebner served as a consultant to Matt Stone and Trey Parker. Ebner had previously authored The New York Times best seller Hollywood, Interrupted, which includes an analysis of the Church of Scientology and its effects on the culture in Hollywood, and has a chapter on Tom Cruise and John Travolta's relationship to Scientology. On the official Comedy Central website for the South Park episode, it is asserted that the section of "Trapped in the Closet" that explains Scientology's portrayal and beliefs was not exaggerated: "Nothing about what you see here is exaggerated in the slightest. Seriously." The title is a reference to the R. Kelly song of the same name, and a depiction of R. Kelly appears in the episode to sing a parody of it.
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How much did it cost to produce this episode?

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