Too many, Mikey. While looking (unsuccessfully) for Boris Godunov on IPlayer I stumbled on a snatch of Mendelssohn's violin concerto (one of my first records as a kid) and the first movement of another favourite, the Elgar cello concerto, played by a young Argentinian woman. Spent an afternoon listening to different versions of it on YouTube (including one by the late Jacqueline Du Pré with Barenboim conducting.
But I fell in love with the Massenet Méditation (far too) many years ago, and love it still.
Just listened to Lark Ascending with Janine Jansen.