Carl Orff’s choral celebration of love, lust and youthful excess in medieval times is as iconic as ever — at once gloriously bawdy and touchingly beautiful. Rautavaara’s ethereal “concerto for birds and orchestra” features bird calls recorded in arctic Finland. Banner, by CSO Mead Composer-in-Residence Jessie Montgomery, is a vibrant rhapsody on The Star-Spangled Banner.