In Canada, classical music includes a range of musical styles rooted in the traditions of Western or European classical music that European settlers brought to the country from the 17th century and onwards. As well, it includes musical styles brought by other ethnic communities from the 19th century and onwards, such as Indian classical music (Hindustani and Carnatic music) and Chinese classical music. Since Canada's emergence as a nation in 1867, the country has produced its own composers, musicians and ensembles. As well, it has developed a music infrastructure that includes training institutions, conservatories, performance halls, and a public radio broadcaster, CBC, which programs a moderate amount of Classical music. There is a high level of public interest in classical music and education. Canada has produced a number of respected ensembles, including the Montreal Symphony Orchestra and the Toronto Symphony Orchestra, as well as a number of well-known Baroque orchestras and chamber ensembles, such as the I Musici de Montréal Chamber Orchestra and the Tafelmusik Baroque Orchestra and Chamber Choir. Major Canadian opera companies such as the Canadian Opera Company have nurtured the talents of Canadian opera singers such as Maureen Forrester, Ben Heppner, and Jon Vickers. Well-known Canadian musicians include pianist Glenn Gould; violinist James Ehnes; pianist Jan Lisiecki; conductor Yannick Nézet-Séguin; flautist Timothy Hutchins; and composers Claude Vivier, R. Murray Schafer and Harry Somers. Well-known music schools include the Royal Conservatory of Music (Canada) in Toronto and the Schulich School of Music at McGill University in Montreal. Opera and vocal Opera singers A number of Canadian singers who learned their craft in Canadian opera companies went on to sing in major international opera houses. The Holman Opera Troupe, which toured throughout Canada in the 1860s–1880s, were at separate periods, lessees of the London Opera House, the Royal Lyceum, Toronto, the Grand Opera House, Ottawa, and the Theatre Royal, Montreal. The troupe consisted of Mr. George Holman, his wife, his daughter Sallie Holman (soprano/principal singer) another daughter, and two sons, with some others, including William H. Crane and Sallie's husband Mr. J. T. Dalton. Bertha May Crawford (1886–1934), a coloratura soprano from Toronto, was probably the only Canadian singer of her era to achieve significant success performing in major opera houses in Russia and Poland during the First World War and through the 1920s. In the early 20th century, contralto singer Portia White (1911–1968) achieved international fame because of