Question: Who wrote the happy birthday to you tune?
Answer: Patty and Mildred J. Hill
Disambiguated annotations:
qaPairs: question: Who is believed to have written the happy birthday tune?
answer: Patty and Mildred J. Hill
question: Who was credited with writing the happy birthday tune on the copywright?
answer: Preston Ware Orem and Mrs. R. R. Forman