Question: What musical profession does Cameraman Gangatho Rambabu and N. C. Karunya have in common?

Context paragraphs:
Vasu Inturi: Vasu Inturi (Telugu: వాసు ఇంటూరి ) is a Telugu actor.  He is popular for his role of "Sarvam" in the TV show "Amrutham".  He worked as assistant director & director on "Amrutham" and penned some episodes.  Later he directed the TV series "Gangatho Rambabu".  In 2014, he co-wrote "Chandamama Lo Amrutham", the first Indian space comedy film, with Gangaraju Gunnam.

Robert Parker (musician): Robert Parker {'1': ", '2': ", '3': ", '4': "} (9 January 1847 – 20 February 1937) was a New Zealand organist, choirmaster and conductor.  He was born in London, England in 1847.  He was appointed Companion of the Order of St Michael and St George in the 1930 New Year Honours as "a leading member of the musical profession in the Dominion of New Zealand".

Cameraman Gangatho Rambabu: Cameraman Gangatho Rambabu (English: "With Cameraman Ganga, Rambabu") is a 2012 Telugu political action film written and directed by Puri Jagannadh.  The film stars Pawan Kalyan, Tamanna and Gabriela Bertante in the lead roles and was launched in Hyderabad on 14 March 2012.  Filming started from 15 June 2012.  It was less hyped for Pawan Kalyan as it released after his blockbuster hit Gabbar Singh.  It was the second collaboration between Puri Jagannadh and Pawan Kalyan.  The film was dubbed in Hindi as "Mera Target".

Gervase Hughes: Gervase Alfred Booth Hughes (1 September 1905 – July 1984) was an English composer, conductor and writer on music.  From 1926 to 1933, Hughes pursued a career as a conductor and chorus master, principally at the British National Opera Company, and also co-produced Shakespeare plays.  He left the musical profession in 1933, raising a family and working first as an executive in a railway company and later running luxury European tours.  From 1960 to 1972 he published a series of books on musical subjects, beginning with a study of the music of Arthur Sullivan, published in 1960.

Dan Morgan (writer): Dan Morgan was an English science fiction writer and a professional guitarist, mainly active as a writer from the early 1950s through the mid-1970s.  In addition to his fiction, he wrote two manuals relating to his musical profession.

Tzofei Tel Aviv: Tzofei Tel Aviv (or Tel Aviv Scouts in English) is a musical group originating from Israel.  The performers are teenagers, picked out of the Israel Scouts in Tel-Aviv, Israel.  They tour around the world, performing mostly Hebrew songs for Jewish organizations and others the world over.  For example, they performed Yom Ha'atzmaut concerts in Lima and Guayaquil in June 2003, as they did in St. Louis Park, MN, in 2006.  The group's musical director is Moishele Yosef, who has various other jobs in the musical profession.

N. C. Karunya: N. C. Karunya (born 1 March 1986) is a popular playback singer,performer and a TV show host.  He was a runner-up on the popular reality show "Indian Idol" (Season 2) on Sony Entertainment Television.

Chickering Hall, Boston (1883): Chickering Hall (est.1883) was a concert auditorium in Boston, Massachusetts, in the late 19th century.  It occupied the second floor of Chickering and Sons showrooms on Tremont Street, near the corner of West Street. " Bradlee, Winslow and Wetherell were the architects, and Mr. E.P. Treadwell, the decorator.  The hall [was] lighted by the Edison electric light."  By 1895: "Tremont St., towards Boylston, for some years has been called Piano Row, for a long row of piano agencies occupied a good portion of the block; but of late most of these have migrated to Boylston St. Chickering Hall, at 152 Tremont St., was for many years a favorite place for fashionable musicales, and the headquarters of the musical profession."

Cameraman Gangatho Rambabu (soundtrack): Cameraman Gangatho Rambabu is the feature film soundtrack of the 2012 Political Action film of the same name starring Pawan Kalyan, Tamannaah in the lead roles directed by Puri Jagannath.  The Soundtrack is composed by Mani Sharma who marks his fourth collaboration with Puri Jagannath and Pawan Kalyan.  All lyrics were penned by Bhaskarabhatla Ravikumar while Hemachandra, Karunya, Geetha Madhuri, Sravana Bhargavi, Chaitra, Khushi Murali, Narendra and Sri Krishna crooned for the film for 6 Tracks which also included a special song named "Power Song" composed, written and crooned by Popular Singer cum Rapper Baba Sehgal as a tribute to Pawan Kalyan.  The Audio was released through Aditya Music Label directly into the stores on September 26, 2012.  The Audio received Amazingly positive response.

Kapellmeister: Kapellmeister (] ) is a German word designating a person in charge of music-making.  The word is a compound, consisting of the roots "Kapelle " ("choir", "orchestra", or originally, "chapel") and "Meister " ("master").  Thus, the word was originally used to refer to somebody in charge of music in a chapel.  However, the term has evolved considerably in its meaning in response to changes in the musical profession.

Supporting paragraphs: Cameraman Gangatho Rambabu (soundtrack) N. C. Karunya
Answer: singer