I had the privilege on Friday night of attending a special event for subscribers to the Orchestra of St. Luke's series at Carnegie Hall. The orchestra would be recording a concert for radio syndication in their new rehearsal/recording space, the Mary Flagler Cary Hall at the DiMenna Center for Classical Music, an extraordinary building at 450 W. 37 Street (near 10th Avenue) that has been adapted both for classical music and – on higher floors – for theater. I recently saw a Tennessee Williams revival – Vieux Carr