Question: What was the original name of the opera diva dame that the Melba Memorial Conservatorium was named after?

full_context: Document 1: Nellie Melba: Dame Nellie Melba GBE (19 May 186123 February 1931), born Helen Porter Mitchell, was an Australian operatic soprano. She became one of the most famous singers of the late Victorian era and the early 20th century. She was the first Australian to achieve international recognition as a classical musician. She took the pseudonym "Melba" from Melbourne, her home town.
Document 2: Arts Centre Melbourne: The Arts Centre Melbourne, originally known as the Victorian Arts Centre and briefly officially called the Arts Centre, is a performing arts centre consisting of a complex of theatres and concert halls in the Melbourne Arts Precinct, located in the central Melbourne suburb of Southbank in Victoria, Australia.
Document 3: Glenys Fowles: Glenys Rae Fowles AM (born 4 November 1941; some sources say 1946) is an Australian operatic soprano who sang with Opera Australia and its predecessors for many years. She also sang at Covent Garden, Glyndebourne, and for the New York City Opera, San Diego Opera, and Scottish Opera. She also appeared at the BBC Proms and with the New York Philharmonic. Her recording with Heather Begg of the "Flower Duet" from Delibes's "Lakmé" has become famous.
Document 4: University of Melbourne Faculty of VCA and MCM: The Faculty of the Victorian College of the Arts and Melbourne Conservatorium of Music (Faculty of VCA and MCM) is a faculty of the University of Melbourne, in Victoria, Australia. VCAMCM is located near the Melbourne City Centre, on two campuses: one – the Melbourne Conservatorium of Music (MCM) – on the Parkville campus of the University of Melbourne, and the other – the Victorian College of the Arts (VCA) – on St Kilda Road, at Southbank.
Document 5: Tait Memorial Trust: The Tait Memorial Trust [TMT] is a charitable foundation, first established in the United Kingdom, with the chief purpose of providing financial support to outstanding young Australian performing artists who wish to pursue post-graduate studies in leading performing arts institutions or privately with internationally recognised teachers in the United Kingdom. It also offers performance opportunities in their many concerts and events in London and advice and mentoring to awardees. The TMT was founded by Isla Baring OAM in memory of her father, Sir Frank Tait and his brothers, who played such an important part in the establishment of theatre and the performing arts in Australia. Sir Frank Tait's management, who being the youngest of the Tait brothers, carried the firm JC Williamson's into their most successful years dominated by the Sutherland-Williamson opera company in 1965 which brought Dame Joan Sutherland back to her homeland.
Document 6: Melba toast: Melba toast is a dry, crisp and thinly sliced toast, often served with soup and salad or topped with either melted cheese or pâté. It is named after Dame Nellie Melba, the stage name of Australian opera singer Helen Porter Mitchell. Its name is thought to date from 1897, when the singer was very ill and it became a staple of her diet. The toast was created for her by chef and fan Auguste Escoffier, who also created the Peach Melba dessert for her. The hotel proprietor César Ritz supposedly named it in a conversation with Escoffier.
Document 7: Melba, Australian Capital Territory: Melba is a residential suburb in the Belconnen district of Canberra, located within the Australian Capital Territory, Australia. The suburb of Melba is named after Dame Nellie Melba (1861-1931), the first internationally recognised Australian opera soprano. The streets are named after composers, singers and other musically notable Australians or people with strong Australian connections.
Document 8: Mina Foley: Mina Foley (9 March 1930 – 21 January 2007) was a New Zealand coloratura soprano, who rose to prominence in the 1950s. She was the first of many to study under the acclaimed singing teacher Dame Sister Mary Leo. Other prominent singers who studied with Mary Leo included the internationally renowned soprano Dame Kiri Te Kanawa, soprano Dame Malvina Major, and mezzo-soprano Heather Begg. Foley's voice was dubbed "The voice of the century" by some.
Document 9: Melba Memorial Conservatorium of Music: The Melba Memorial Conservatorium of Music was a school of music located in Melbourne, Victoria, Australia. During its early days it was closely associated with opera diva Dame Nellie Melba, after whom it was later named. In 1994 it became affiliated with Victoria University. Founded in 1901 as "The Conservatorium of Music, Melbourne", the Melba Conservatorium ceased teaching at the end of 2008. However, it finds its continuing expression in the form of Melba Opera Trust.
Document 10: Melbourne Law School: Melbourne Law School (MLS or Melbourne Law) is one of the professional graduate schools of the University of Melbourne. Located in Carlton, Victoria, MLS is Australia's oldest law school, and offers J.D., LL.M, Ph.D, and LL.D degrees. In 2014-2016, QS World University Rankings ranked MLS as the best law school in Australia and eighth best in the world.
Document 11: Florence Aline Rodway: Florence Aline Rodway (11 November 1881 – 23 January 1971) was an Australian artist best known for her portraits. Born in the Tasmanian city of Hobart, she was the second of six children to Leonard Rodway and Louisa Susan, née Phillips. She studied painting at the Hobart Technical College (now TasTAFE); after two years her work was sent to London, and she was awarded a three-year scholarship to study painting at the Royal Academy of Arts, London. She is best known for having painted portraits of notable figures in Australian history, including Dame Nellie Melba, William Bridges, J. F. Archibald and Henry Lawson.
Document 12: Carmen Melis: Carmen Melis (15 August 1885 – 19 December 1967) was an Italian operatic soprano who had a major international career during the first four decades of the 20th century. She was known, above all, as a verismo soprano, and was one of the most interesting singing actresses of the early 20th century. She made her debut in Novara in 1905 and her career rapidly developed in her native country over the next four years. From 1909-1916 she performed with important opera companies in the United States; after which she was busy performing at many of Europe's most important opera houses. From 1917 until her retirement from the stage in 1935 she was particularly active at the Teatro Costanzi in Rome and at La Scala in Milan. After her singing career ended, she embarked on a second career as a voice teacher. Her most notable student was soprano Renata Tebaldi.
Document 13: Sara Flower: Sara Elizabeth Flower (c. 18201865) was a British-born contralto singer who became Australia's first opera star. She began a musical career in London in the 1840s but decamped to Australia late in 1849, when her professional future seemed secure. Soon after her arrival in Melbourne early in 1850 she began a career as the Australian vocal phenomenon of the era. In 1852 she appeares in Sydney in the first production in Australia of Bellini's opera "Norma". Flower was Australia's first diva.
Document 14: Joan Carden: Joan Carden AO OBE (born 9 October 1937) is an Australian operatic soprano. She has been described as "a worthy successor to Dame Nellie Melba and Dame Joan Sutherland" and was sometimes known as "the other Joan" (a reference to Sutherland and Dame Joan Hammond) or "The People's Diva". She was a Principal Soprano with Opera Australia for 32 years, and was particularly associated with the title roles of Giacomo Puccini's "Tosca" and "Madama Butterfly". However, she sang over 50 other roles, from the 18th century, including virtually all the Mozart heroines, through to works by contemporary composers.
Document 15: Lalla Miranda: Lalla Miranda (1874-1944) was an Australian coloratura soprano who was primarily active in Belgium, France, and Great Britain. Born in Melbourne, she was the daughter of opera singers David Miranda and Annetta Hirst and the older sister of opera singer Beatrice Miranda. After studies in London and Paris, she made her professional opera debut in The Hague in 1898. She then appeared in numerous operas in Amsterdam in successive years. In 1899 she was a resident artist at La Monnaie. She made several appearances at the Palais Garnier in Paris and at theatres in the French Provences during the first two decades of the 20th century. In 1900-1901 and from 1907-1911 she was committed the Royal Opera House on London. In 1910 she was committed to both the Manhattan Opera Company and the Philadelphia Opera Company. She notably opened the 1910 season at the Manhattan Opera House in the title role of Donizetti's "Lucia di Lammermoor", a role for which she was famous. In New York and Philadelphia she also sang Gilda in "Rigoletto", Olympia in "The Tales of Hoffmann", and the title role in "Lakmé". After 1918 she was primarily active with the Carl Rosa Opera Company. She retired in the early 1920s. She made only a few recordings on the Pathé Records label.
ground_truth: Helen Porter Mitchell