[2] She matriculated to The Royal Conservatory of Music before studying under La Scala coach Giovanni Pinetti in Italy.

[3] After giving more than 200 concerts in an extensive tour of the rural areas of both Western Canada and the Central United States,[2][4] that May, she performed at St. James United Church in Montreal during her first professional appearance in the Quebec city,[5] and went on to sing in the first broadcast of a concert in Toronto on the Eastern Chain of the radio network CNR.

[4] In 1929, Shuttleworth was selected to sing on the radio for the inaugural international broadcast to the United States from Paris' Eiffel Tower.

[4] She was invited to perform in Milan for her public debut in Italy accompanied by Pinetti on March 19 the year after.

[9][10] Shuttleworth returned to conduct an evening recital in Montreal's St James United Church to commemorate Saint Patrick's Day in March 1932.

[11] A Toronto voice critic noted the singer gave "a strongly incisive character" and could develop herself "in the moods of her renditions.