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.
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".
Peter J. Wilhousky (Rusyn: Пітер (Петро) Вільховський ) (13 July 1902, Passaic, New Jersey – 1978) was a popular American composer, educator, and choral conductor of Carpatho-Rusyn ethnic extraction.
 During his childhood he was part of New York's Rusyn Cathedral Boys Choir and gave a performance at the White House to President Woodrow Wilson.
 He was featured on several broadcasts of classical music with Arturo Toscanini and the NBC Symphony Orchestra, including the historic 1947 broadcast of Verdi's opera "Otello".
 In 1936, he wrote the popular Christmas carol "Carol of the Bells"; a song with English lyrics to the popular composition by Ukrainian composer Mykola Leontovych originally known as "Shchedryk".
 His arrangement of the "Battle Hymn of the Republic" for chorus, band, and orchestra is probably the most famous arrangement of the hymn before the 1940s in the United States.
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."
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.
"Shchedryk" (from , "Bountiful Evening") is a Ukrainian "shchedrivka", or New Year's carol, known in English as "The Little Swallow".
 It was arranged by composer and teacher Mykola Leontovych in 1916, and tells a story of a swallow flying into a household to sing of wealth that will come with the following spring.
 "Shchedryk" was originally sung on the night of January 13, New Year's Eve in the Julian Calendar (December 31 Old Style), which is "Shchedry Vechir".
 Early performances of the piece were made by students at Kyiv University.
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.
A stereotype is a generalized idea or image about a particular person or thing that is often oversimplified and offensive.
 Stereotypes are victim of prejudice when negative portrayals of a group are untrue of individual members.
 Nursing has been stereotyped throughout the history of the profession.
 A common misconception is that all nurses are female; this has led to the stereotype of male nurses as effeminate.
 These generalized ideas of the nursing profession have formed a skewed image of nurses in the media.
 The image of a nurse projected by the media is typically of a young white single female being over-sexualized as well as diminished intellectually; this idea is then portrayed in get-well cards, television shows and novels.
 The over-sexualized nurse is commonly referred to as a naughty nurse and is shown as a sex symbol or nymphomaniac. Along with these common stereotypes, studies have identified several other popular images used in media such as handmaiden, angel, torturer, homosexual male, alcoholic, buffoon and woman in white.
 Common stereotypes of nursing and portrayal of these misconceptions have fueled a discussion on the effects they have on the profession, harmful or good.
"Carol of the Bells" is a popular Christmas carol composed by Ukrainian composer Mykola Leontovych in 1914 with lyrics by Peter J. Wilhousky.
 The song is based on a Ukrainian folk chant called "Shchedryk".
 Wilhousky's lyrics are copyrighted, although the original musical composition is not.
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.

Question: What musical profession does Peter Wilhousky and Shchedryk have in common?
Answer: composer