A perfect primer for the evening-length work L’Allegro, Il Penseroso ed il Moderato is provided by choreographer Mark Morris, his dancers and his artistic collaborators, who explain the structure of the dance, the music, as well as the set, costumes and lighting. Morris shares insights on how the music of Handel, poetry of John Milton and art of William Blake shaped his masterpiece “L’Allegro,” which is performed by the Mark Morris Dance Group with live orchestra and chorus.