This morning went with Mrs Popple to the rehearsal of the musick for the benefit of the Westminster Infirmary at St Margaret[’]s Westminster, a most elegant church, which was repaired and beautify’d at the expense of the House of Commons; there were I dare say an hundred performers Beard, Champness, Baildon Cox etc sung; near 40 voices I believe; Handells Te Deum, The Grand Chorus in the Messiah for the Lord God omnipotent reigneth. The Anthem of Dr Boyce’s for their Majesties Nuptials, and the Coronation Anthem were performed, and it was vastly grand, there being all sorts of instruments. Dr Boyce beat time in the front. Dined and drank tea at Mrs Popples.