Possible Clues:

• Voice that's raised, excessively raised, after hypocritical opening
• Abnormally high voice
• Wrong time and time again — love rather strained
• Register phony sort of small child
• High-pitched argument follows taking out of rubbish
• Voice disagreement after brief collapse
• Row on river that's unusually high
• High river battle
• Shrill voice of loud singer introducing song sequence
• Unusually pitched battle beside Cornish river