to 2159: Wine, woman & song

The three groups associated with EMPEROR (24) were MOTHS (1A, 25D, 39), PAPER SIZES (9, 16A, 44), and PENGUINS (13, 19, 43).  The title suggested another grouping, STRAUSS WALTZES.
 
First prize Sue Topham, Elston, Newark
Runners-up Christine Twickel, Tidmington, Shipston on Stour; John Light, Addlestone, Surrey