It's Schumann's birthday, so for a Friday Historical I'd like to play one of the most exquisite and heartbreaking recordings I know. This is Menuhin in the slow movement of the Violin Concerto. A much-maligned work that might have lain forgotten in a Berlin library forever, had Clara and Joachim had their way, it's a piece that can baffle on first hearing; but the better you know it, the more there is to discover, especially in the cyclic nature of its themes - for instance, a pattern that sounds like a curving, linking melody in this movement is derived from the second subject of the first movement and forms the main theme of the third. That's just a taster idea; listen and go deeper. Much deeper.
Recorded in 1937 with Barbirolli conducting the New York Philharmonic. (It cuts off rather abruptly at the end - this movement, of course, leads straight into the finale.)