I have always loved this picture of the musical Sharp family, with their musical instruments on a family boat on the River Thames, painted by Johan Josef Zoffany in about 1780. Their letters are an important source of information and colour about Georgian music-making. Granville was also one of the main figures in the anti-slavery campaigns. His brother William acquired a three stop chamber organ in 1756 by “Mess:rs Jordan, Byfield & Bridge”, see his extraordinary punning description of it in Brian Crosby Private Concerts on Land and Water: The Musical Activities of the Sharp family, c.1750-c.1790 (Royal Musical Association Research Chronicle, No. 34, 2001).