Played her first concert, on flute and harpsichord, in London at the age of seven (1751). Franklin taught her to play the glass armonica, a musical instrument that he had invented in 1762. She was the first person to give public concerts on the armonica and remained the leading performer on the instrument throughout her career. Appeared frequently in London in the 1760s; also toured Paris, Ireland, Vienna, and Italy. Ill health and depression following the deaths of her parents led her to retire from public life by the mid- 1780s.
Sister of the singer Cecilia Davies.