- Winton Dean
(bc1741; d after 1779).?English mezzo-soprano and harpsichordist. She may have been the daughter of a Mrs Frederica who sang in the pasticcio opera L’incostanza delusa at the New Theatre in the Haymarket early in 1745. Cassandra was an infant prodigy as a harpsichordist; she played Handel keyboard concertos for her own benefit at the New Haymarket on 10 April 1749 at the reputed age of five and a half, and at Hickford’s Room on 29 April 1750. She and her mother gave two concerts at Amsterdam in July 1750. She studied singing under Paradies, and was engaged by Handel for his oratorio season of 1758, when she appeared in revivals of The Triumph of Time and Truth (Deceit), Belshazzar (Daniel), Jephtha (Storgè), Judas Maccabaeus (Israelite Man) and Messiah. On the last day of 1757 Lord Shaftesbury wrote that Handel ‘has just finished the composing of several new songs for Frederica his new singer, from whom he has great expectations’. These were the five additional songs (adapted from opera arias) first sung in ...