Tune in at 7 tonight to hear pianist Pierre-Laurent Aimard play Mozart's 23rd Concerto, plus a new concerto written for him by fellow Frenchman Tristan Murail. Also, American David Robertson conducts Beethoven's irresistible Symphony no. 2, and a work by the mystical Frenchman Olivier Messiaen. As usual, Alec Baldwin hosts this weekly broadcast of the New York Philharmonic.