Erik William Chisholm (4 January 1904 – 8 June 1965) was a Scottish composer, pianist, organist and conductor often known as "Scotland's forgotten composer". According to his biographer, Chisholm "was the first composer to absorb Celtic idioms into his music in form as well as content, his achievement paralleling that of Bartók in its depth of understanding and its daring", which led to his nickname of "MacBartók". He was also a founder of the Celtic Ballet and, together with Margaret Morris, created the first full-length Scottish ballet, The Forsaken Mermaid. He was also the dean and director of the South African College of Music at the University of Cape Town for 19 years. Chisholm founded the South African College of Music opera company in Cape Town and was a vital force in bringing new operas to Scotland, England and South Africa. By the time of his death in 1965, he had composed over a hundred works.
Erik Chisholm was the son of John Chisholm, master house painter, and his wife, Elizabeth McGeachy Macleod. He left Queen's Park School at the early age of 13 due to ill-health but showed a talent for music composition and some of his pieces were published during his childhood. He had piano lessons with Philip Halstead at the Athenaeum School of Music, now the Royal Conservatoire of Scotland, and later studied the organ under Herbert Walton, the organist at Glasgow Cathedral. By the time he was 12 he was giving organ recitals including an important one in Kingston upon Hull. The pianist Leff Pouishnoff then became his principal teacher and mentor. In 1927 he travelled to Nova Scotia, Canada, where he was appointed the organist and choirmaster at the Westminster Presbyterian Church, New Glasgow, and director of music at Pictou Academy.