“Closing the program will be a selection of songs from Gershwin’s Porgy and Bess, including the Introduction and Jasbo Brown Blues; ‘Summertime,’ featuring Kristine Opolais and the Tanglewood Festival Chorus; ‘I got plenty o’ nuttin’,’ featuring Sir Bryn Terfel; and ‘Bess, you is my woman now,’ featuring both Ms. Opolais and Sir Bryn.” [Actual press release from the BSO. It is not clear whether tenor Russell Thomas will sing “It’s a Great Day for the Irish.”]