Opera Siam organizes two nights of Gustav Mahler classical music, conducted by Somtow Sucharitkul, in honor of the late Princess Galyani Vadhana. The Siam Sinfonetta will perform music of the Ballets Russes on Feb 16 and the Siam Philharmonic will perform Mahler Symphony No. 2 on Feb 18. Pre-concert talk on both nights by Jean-Pierre Kirkland. Pre-assigned seats can be reserved with donations at http://ow.ly/HZMbt.