Oscar Emmanuel Peterson, CC CQ OOnt (August 15, 1925 – December 23, 2007) was a Canadian jazz pianist, virtuoso and composer. He was called the “Maharaja of the keyboard” by Duke Ellington, simply “O.P.” by his friends, and informally in the jazz community as “the King of inside swing”.He released over 200 recordings, won eight Grammy Awards, and received numerous other awards and honours. He is considered one of the greatest jazz pianists, and played thousands of concerts worldwide in a career lasting more than 60 years.

Peterson was born in Montreal, Quebec, to immigrants from the West Indies; his father worked as a porter for Canadian Pacific Railway. Peterson grew up in the neighbourhood of Little Burgundy in Montreal. It was in this predominantly black neighborhood that he encountered the jazz culture.At the age of five, Peterson began honing his skills on trumpet and piano, but a bout of tuberculosis when he was seven prevented him from playing the trumpet again, so he directed all his attention to the piano. His father, Daniel Peterson, an amateur trumpeter and pianist, was one of his first music teachers, and his sister Daisy taught him classical piano. Peterson was persistent at practising scales and classical études.

As a child, Peterson studied with Hungarian-born pianist Paul de Marky, a student of István Thomán, who was himself a pupil of Franz Liszt, so his early training was predominantly based on classical piano. But he was captivated by traditional jazz and boogie-woogie and learned several ragtimepieces. He was called “the Brown Bomber of the Boogie-Woogie”.