Jean-Baptiste Loeillet of London (18 November 1680 – 19 July 1730), was a Flemish composer and musician of the Baroque period.
He played woodwind in the Queen's Theatre in the Haymarket[1] and held musical gatherings every week at his home.
According to the New Penguin Dictionary of Music, he helped to popularise the transverse flute (a new instrument compared to the recorder) in England.
He used the flute, recorder, oboe, and violin as solo instruments throughout his three volumes of sonatas.
His composition, Lessons for the Harpsichord or Spinet, was accidentally attributed to Jean-Baptiste Lully, an Italian-born French composer.