Anne Ford it was considered controversial for a woman to play the "masculine" viola da gamba, referred to at the time as the "viol di gambo". Ford gave a performance at Spring Gardens in 1761, "English airs". accompanying herself on the musical glasses. She also wrote a published work, "Instructions for Playing on the Musical Glasses". The instrument was comparable to the glass harp of Richard Pockrich consisting of individual glass goblets tuned with water, and preceded the 1761 mechanized armonica (Glass harmonica) invention of Benjamin Franklin and played by Marianne Davies. Ford's accomplishments risked being complicated by an infatuated lover, the
Marianne Davies Marianne Davies Marianne Davies (1743 or 1744, England – c. 1818) was an English musician, and the sister of the classical soprano Cecilia Davies. She was a singer who also played flute and harpsichord. In 1762 she became the first person to publicly perform on the glass harmonica (also known as the armonica), an instrument consisting of variously sized and tuned glass bowls that rotate on a common shaft, played by touching the spinning glass with wet fingers. She toured in concerts with her sister, performing in Dublin (1763), London, and on the Continent where the two girls became acquainted