Referring Clues

• Children's song refrain
• Refrain from farming?
• Letters on a farm?
• "Old MacDonald" refrain
• Farm letters?
• Letters for Old MacDonald
• Refrain in "Old MacDonald"
• Five-note refrain
• "Farm" letters
• Refrain from children's singing?
• Children's song refrain
• Kid's song refrain
• Sequence sung by kids
• Follower of a duck, pig or cow
• Farmer's letters?
• Children's refrain
• Follower of cow, pig or horse
• Old MacDonald refrain
• Nonsensical refrain
• Follower of ducks, sheep or pigs
• Refrain from singing in kindergarten?
• "Old MacDonald" ending
• "...he had some cows" follower
• "With a quack quack here" preceder
• Vowel sequence shared by this puzzle's theme entries
• "Old MacDonald Had a Farm" refrain
• Refrain in a children's song
• Kids' song refrain
• Old McDonald's refrain
• Farmer's refrain?
• Barnyard refrain
• "Old MacDonald" letters
• Farming song refrain
• Refrain from singing about farm animals?
• Child's refrain
• Letters sung after "... had a farm"
• Preschool song refrain
• Farm song refrain
• "... had a farm" follower
• Refrain letters from "Old MacDonald"
• Letters after many animal names
• Refrain learned at an early age
• Theme scheme for this puzzle
• Kindergarten refrain
• Toddlers' song refrain
• Refrain from a kids' song
• " ... had a farm" follower
• Consonantless refrain
• Vowely refrain
• Horse or cow follower
• Farm refrain
• Refrain from a preschool song
• All-vowels song refrain
• Common refrain that's a hint to this puzzle's theme
• "... had a farm, ___"
• Familiar refrain
• Tots' song refrain
• Familiar vowel sequence
• "... a farm, ___"
• Refrain for Old MacDonald
• "Had a farm" follower
• ". . . had a farm, ___"
• "Farm" follower
• End of a kids' song
• "... had a farm, ___" (song refrain)
• "Old MacDonald" refrain
• Old MacDonald letters
• Letters from childhood
• ". . . had a farm, ___"
• End of a rustic refrain
• Refrain from singing about a farm?
• Children's-song refrain
• Letters sung after various animal names
• "Old MacDonald" nonsense refrain
• "... had a farm, ___"
• Familiar farm-song refrain
• Children’s song refrain
• "... had a farm, ___" (song refrain)
• "... a farm, ___"
• "Had a farm" follower
• "Farm" follower
• Refrain from preschool
• Vowel sequence in a kid's song
• MacDonald's refrain
• "Old MacDonald hHd a Farm" refrain
• Refrain down on the farm
• Refrain down on the farm
• Letters sung after "had a farm"
• Refrain in a song full of animal sounds
• Old MacDonald's refrain
• Kiddie-song refrain
• Followers of various animals?
• Farm refrain?
• 'Old MacDonald's Farm' refrain
• 'Old MacDonald' sequence found in this puzzle's 10 longest answers
• 'Old MacDonald' refrain
• Refrain in 'Old MacDonald'
• 'Old MacDonald' letters
• 'Old MacDonald' sequence
• "Old MacDonald had a farm" follower
• Vowels in a song
• Kiddie chorus line
• End of a kindergarten tune
• End of a kindergarten song
• End of a kid's song
• Nursery school refrain
• President Clinton without consonants
• "... farm, ___"
• Kiddie's refrain
• Five-letter song refrain
• Finish of a kindergarten tune
• Letters in a children's refrain
• Letters sung by kids
• Agrarian refrain
• What goes after cows, ducks and pigs?
• Farmyard refrain
• Farm sequence?
• Noted preschool sequence?
• Follower of 'had a farm'
• Kiddie-song letters
• Three-note quintet
• Letters associated with animal sounds
• Farm sounds
• Children's song refrain found at the starts of 17-, 26-, 35-, 50- and 57-Across
• Kiddie chorus conclusion
• Trailer for farm animals?
• Farm follower?
• Preschool song ender
• Refrain from singing as a child?
• "Old McDonald" refrain
• Vowel-laden refrain
• Refrain sung with barnyard noises
• Refrain heard with animal noises
• Letters on the farm
• Kids' song refrain that's all vowels
• "Old MacDonald" refrain, and a feature of the five longest Across answers
• String in a kids' song
• Three-note refrain
• What might come after a cow or a sheep?
• Kiddie song conclusion
• Letters sung as mi, mi, re, re, do
• Kindergarten song refrain
• Refrain consisting of vowels
• Farm follower?
• Vowels sung to children
• Mi-mi-re-re-do, in a children's song
• Letters from down on the farm?
• Kids' song conclusion
• Refrain from nursery singing
• Vowel sequence in a children's song
• Refrain in a children's song ... or a literal feature of 17-, 25-, 42- and 55-Across
• Children's song refrain featured in the four longest answers
• Refrain heard in the dell?
• "Old McDonald" ender
• Follower of pigs or cows
• Refrain on Old MacDonald's farm
• Farm song conclusion
• Barnyard song refrain
• "Old MacDonald" conclusion
• Refrain from childhood
• Farm song letters
• All-vowel refrain
• Kids' refrain
• Letters heard after "cow," "pig" and "horse"
• MacDonald's jingle?
• Refrain in 51-Across that accompanies the sounds at 24-, 37- and 47-Across
• Singalong quintet
• Nursery refrain
• "With a moo moo here ... " preceder
• Farmyard refrain in a children's song
• Children's song refrain ("Old MacDonald had a farm ...")
• Nursery song refrain
• Letters before "And on that farm ..."