Question: Are both George Stambolian and Richard Hagopian musicians?
Context: The Georgian Bay Symphony (GBS) located in Owen Sound, Ontario, Canada was founded in 1972 by a small group of dedicated area musicians and became a Canadian Registered Charity in 1982.  It is considered a significant cultural institution in Owen Sound and area.  The GBS is a community orchestra with over 60 volunteer musicians and a core group of professionals under the musical direction of François Koh.  The GBS performs five “Main Series” concerts in the 761-seat Owen Sound Collegiate and Vocational Institute Community Auditorium each season.  Guest artists have included some of Canada’s best musical talent including Shauna Rolston, Alain Trudel, George Gao, Adrian Anantawan, Richard Raymond, and Sharlene Wallace. The Mutual Musicians' Foundation Building is a historic building at 1823 Highland Avenue in Kansas City, Missouri.  It is also known as the Mutual Musicians Association Building or the Musician's Union Local or the Local No. 627 of the American Federation of Musicians.  It was a center of the development of the "Kansas City Style" of jazz, and was immortalized in the song "627 Stomp".  Famous members of the Mutual Musicians Foundation included Count Basie, Bennie Moten, Jay McShann, George F. Lee, singer Julia Lee, trumpeter Hot Lips Page, tenor saxophonists Dick Wilson, Herschel Evans and Lester Young, alto saxophonist Charlie Parker, drummer Baby Lovett, and pianist Pete Johnson.  The building was declared a National Historic Landmark in 1981.  It continues to be used as an active performing venue, and also houses a museum. Monty Waters (April 14, 1938 in Modesto, California – December 23, 2008 in Munich, Germany) was an American jazz saxophonist, flautist and singer.  Waters received his first musical training from his aunt and first played in the church.  After his education in college, he was a member of a Rhythm & Blues band.  In the late 1950s he worked with musicians like BB King, Lightnin' Hopkins, Little Richard and James Brown on tour.  In San Francisco he played with King Pleasure and initiated in the early 1960s, a "Late Night Session" at Club Bop City.  There he came into contact with musicians such as Miles Davis, John Coltrane, Art Blakey, Red Garland and Dexter Gordon, who visited this club after their concerts.  In addition, he and Pharoah Sanders, Dewey Redman and Donald Garrett formed a big band.  In 1969 he moved to New York City and went with Jon Hendricks on a concert tour.  During the 1970s he participated in the "Loft Jazz" scene.  Like many other jazz musicians, he moved in the 1980s to Paris, where he worked with Chet Baker, Pharoah Sanders and Johnny Griffin.  Following Mal Waldron and Marty Cook, he came to Munich, Germany and continued to work with musicians such as Embryo, Götz Tangerding, Hannes Beckmann, Titus Waldenfels, Suchredin Chronov or Joe Malinga. Peter Paul Halajian (1864 in Armenia – 1927 in Naugatuck, Connecticut) was a candy manufacturer in the New Haven, Connecticut area in the early 20th century.  Born Peter Halajian in Armenia, he immigrated to the U.S. in 1890 and worked in a rubber factory, opening a candy shop on February 1, 1895 in Naugatuck, Connecticut, and changing his surname to the English equivalent Paul.  After selling chocolate bars to the U.S Army for use by soldiers in World War I, who demanded them when they came home, he teamed with five other Armenian investors (including his brother-in-law Cal Kazanjian, Cal's cousin Artin Kazanjian, chemist George Shamlian, Jacob Chouljian and his cousin Jacob Hagopian) to form the Peter Paul Candy Manufacturing Company on Webster Street in New Haven in 1919 with $6,000.  The company at first sold various brands of candies, including the Mounds bar, but following sugar and coconut shortages in World War II, they dropped most brands and concentrated on the Mounds bar, with the U.S. military purchasing as much as 80% of their output by 1944, packing 5 million candy bars monthly into combat rations.  The Almond Joy bar was introduced in 1946.  In 1978 Peter Paul merged with Cadbury-Schweppes. "In Search of Perfect Consonance" profiles the Asian Youth Orchestra from its establishment in 1987 to its 25th anniversary in 2016.  China and Vietnam were engaged in a long and violent border war, relations between China and Japan were frosty with tensions running high across the Strait of Taiwan.  These events inspired Richard Pontzious to establish the Asian Youth Orchestra in Hong Kong with the support of world renowned musicians such as the great violinist Yehudi Menuhin who eventually became co founder and conducted the first concerts in 1990.  From the its humble beginnings the orchestra aimed to connect the region's aspiring young musicians in a bid to promote peace through music and has trained more than 2,000 musicians from across Asia throughout its 25-year history. Jonathan Rennert (17 March 1952) is an English organist, conductor and writer.  He gave his debut broadcast organ recital at the age of 19 in Westminster Cathedral, having become a Fellow of the Royal College of Organists at 18.  ('A force to be reckoned with', opined the reviewer in 'Music & Musicians'.)  He studied at the Royal College of Music under Richard Popplewell, John Barstow and William Lloyd Webber, and at Cambridge (where he was organ scholar of St John's College) under George Guest and Gillian Weir.  Awards included Cambridge University's John Stewart of Rannoch Scholarship in Sacred Music and 'Greater London Arts Association Young Musician 1975'.  Short periods based in London and Ottawa were followed by his appointment in 1979 as Director of Music of St Michael's Cornhill, the church which has been his base for 32 years.  Here he has given more than 400 of the weekly lunchtime organ recitals, and continued the musical traditions of such predecessors as William Boyce (the 18th-century composer) and Harold Darke.  He has tended to specialise in the music of J S Bach and romantic English composers, though he also gives first performances of new music.  He has given organ recitals in many countries, and in 'celebrity' series at the Royal Festival Hall, St Paul's Cathedral and Westminster Abbey, and was Musician-in-Residence at Grace Cathedral, San Francisco.  There are several CDs, including a choral disc of music by George Dyson in which Rennert conducted St Michael's Singers and the Royal Philharmonic Orchestra, and was commended by 'Gramophone' magazine: 'The performance is superb.  Rennert has the right sense of spaciousness and husbands his climaxes with measured artistry.'  Other choirs of which he has been chief conductor include the Elizabethan Singers and St Cecilia Chorus.  His writings include biographies of the infant prodigy and composer William Crotch, and of the organist George Thalben-Ball.  He has served as President of The Organ Club, Warden of the Incorporated Society of Musicians and Master of the Worshipful Company of Musicians.  He is a senior moderating examiner for the Associated Board of the Royal Schools of Music. George Stambolian (born April 10, 1938 – December 22, 1991, New York City) was an American educator, writer, and editor of Armenian descent.  Stambolian was a key figure in the early gay literary movement that came out of New York during the 1960s and 1970s.  He was best known as the editor of the "Men on Men" anthologies of gay fiction. The Royal Society of Musicians of Great Britain is a charity in the United Kingdom that supports musicians.  It is the oldest music-related charity in Great Britain, founded in 1738 as the "Fund for Decay'd Musicians" by a declaration of trust signed by 228 musicians, including Edward Purcell (eldest son of Henry Purcell), Thomas Arne, William Boyce, Johann Christoph Pepusch, Dr. John Worgan, and George Frideric Handel.  It still operates a bank account at Drummonds Bank (now part of Royal Bank of Scotland) which was opened by its first secretary, Michael Christian Festing, in November 1738. Richard Avedis Hagopian (born 3 April 1937) is an American Oriental-style "oud" player and traditional Armenian musician. Streaming is an album by Muhal Richard Abrams, George Lewis and Roscoe Mitchell released on the Pi Recordings label in 2006.  The Allmusic review by Scott Yanow states that "Decades have passed since the debut of these three musicians, yet they have lost nothing of their musical curiosity and desire to take risks.  The enthusiastic interaction between pianist Muhal Richard Abrams and saxophonist Roscoe Mitchell with Lewis is the real reward of this esoteric outing".
Answer: no