Possible Clues:

• Light work on a stage
• The Merry Widow, for example
• Show ape and otter playing together
• Gilbert and Sullivan offering
• Little play of note?
• Intemperate article about a key stage work
• Patience might provide such light entertainment
• Characters in a treetop in trouble -- one has song and dance
• Johann Strauss work
• Gilbert and Sullivan's 'The Pirates of Penzance', for example