Mark Morris’ 1988 dance, L’Allegro, il Penseroso ed il Moderato, set to music by Handel and poems by John Milton, and inspired by watercolors by William Blake, has been called a work of “utopian grandeur,” “a masterpiece of craft, invention, and feeling,” “in scale and complexity, in a category by itself.” More than 150 photographs capture each of the piece’s 32 interconnected dances and are accompanied by the text of Milton’s interwoven poems, to which Handel set the music.