useless trivia: John F. Kennedy's rocking chair was auctioned off for---------- .?

Questions

Haydn was taken in by this noble patron in 1761 and remained in the service of his family for the next 30 years. ?

Richard Wagner's second wife Cosima was the illegitimatedaughter of what famous virtuoso ?

The formalized solo song used in the opera is : ?

Name the piano virtuoso who spent the earlier years ofhis life pursuing sensual pleasures and many love affairs, but spent the last years of his life in prayer and contemplation as an Abbe. ?

For what instrument did Girolamo Frescobaldi become one of the firstgreat composers of music ?