They had six children: Sir Adam Mortimer Singer (1863–1929), Winnaretta Eugenie Singer (1865–1943), Washington Merritt Grant Singer (1866–1934), Paris Eugene Singer (1867–1932), Isabelle-Blanche Singer (1869–1896), and Franklin Merritt Morse Singer (12 February 1870 – 12 August 1939). It was originally a solo piano work, commissioned by the Princesse de Polignac. After her mother's ...