Mason grew up in Sydney, and had some musical training from his father, and at an early age became a chorister of St Andrew's Cathedral.
He became a pupil of choirmaster and organist Montague Younger and eventually his deputy, frequently presiding at the cathedral organ.
He was still employed as a public service clerk in 1901 when he was appointed Sydney's City Organist for a period of one year, some 18 months after the departure of the Belgian Auguste Wiegand (died 1904[12]).
He resigned as City Organist in June 1907,[16] was given a mayoral reception on 26 July[17] and the family left for London by the Wakool on the 27th.
[20] In February 2011 he returned to the Town Hall organ to play in a benefit concert[21] for the widows of the Coogee surf disaster and the heroes Harald Baker and James Clarken.
[23] Before leaving, he held a farewell concert at the Sydney Town Hall, where he played "A Venetian Serenade", an original composition.
[25] In 1921 his contract with the Herald ended, and he started work as publicity agent for Australia House,[26] writing articles for the Australian press about items of interest in England and vice versa.
[33]The programme was: Transcriptions from opera were popular, and gave Mason the opportunity to present some challenging "new" work, such as excerpts from Wagner's Ring cycle.