No one who loves the piano would have missed Murray Perahia’s sold-out recital on Sunday afternoon in the Music Center at Strathmore, sponsored by Washington Performing Arts Society. Perahia had to cancel his 2006 WPAS recital because of renewed pain from a thumb injury in the 1990s that nearly ended his career. Indeed, there were worries that we might never hear him play again. Happily, there he was, modest and unassuming, bowing politely and then…