| EIEIO | " ... a farm, __" |
| EIEIO | "... had a farm, __" |
| EIEIO | "...Macdonald had a farm" ending letters |
| EIEIO | "...Macdonald had a farm, __" |
| EIEIO | "Farm" follower of song |
| EIEIO | "Farm" letters |
| EIEIO | "Old MacDonald Had a Farm" refrain |
| EIEIO | "Old MacDonald had a farm, ___" |
| EIEIO | "Old MacDonald" chorus |
| EIEIO | "Old MacDonald" chorus letters |
| EIEIO | "Old MacDonald" letters |
| EIEIO | "Old MacDonald" refrain |
| EIEIO | "Old MacDonald" refrain letters |
| EIEIO | "Old MacDonald" refrain, and a feature of the five longest Across answers |
| EIEIO | "Old Macdonald" ender |
| EIEIO | "Old McDonald had a farm, ____" |
| EIEIO | "With a moo moo here ... " preceder |
| EIEIO | '' . . . had a farm __'' |
| EIEIO | '' . . . had a farm, __'' |
| EIEIO | ''. . . had a farm, __'' |
| EIEIO | ''Old MacDonald'' conclusion |
| EIEIO | ''Old MacDonald'' ending |
| EIEIO | ''Old MacDonald'' line |
| EIEIO | ''Old MacDonald'' refrain |
| EIEIO | ''Old McDonald'' ender |
| EIEIO | ''Old McDonald'' refrain |
| EIEIO | All-vowel refrain |
| EIEIO | All-vowels song refrain |
| EIEIO | Barnyard refrain |
| EIEIO | Childish refrain? |
| EIEIO | Children's chorus? |
| EIEIO | Children's refrain |
| EIEIO | Children's song refrain |
| EIEIO | Children's song refrain ("Old MacDonald had a farm …") |
| EIEIO | Children's song refrain ... with a hint to this puzzle's central nine squares |
| EIEIO | Children's song refrain featured in the four longest answers |
| EIEIO | Children's song refrain found at the starts of 17-, 26-, 35-, 50- and 57-Across |
| EIEIO | Chorus in a kids' song |
| EIEIO | Common refrain in pre-K circles |
| EIEIO | Consonant-free chorus in a children’s song |
| EIEIO | Consonant-less refrain in a preschool classroom, perhaps |
| EIEIO | End of a kids' song |
| EIEIO | End of a kindergarten song |
| EIEIO | Ending letters of "Old MacDonald Had a Farm" |
| EIEIO | Farm follower? |
| EIEIO | Farm letters? |
| EIEIO | Farm refrain |
| EIEIO | Farm refrain? |
| EIEIO | Farm song conclusion |
| EIEIO | Farm song letters |
| EIEIO | Farm song refrain |
| EIEIO | Farmer's letters? |
| EIEIO | Farmyard refrain in a children's song |
| EIEIO | Farmyard refrain of children's music |
| EIEIO | Five-note refrain |
| EIEIO | Five-syllable refrain |
| EIEIO | Follower of a duck, pig or cow |
| EIEIO | Follower of cow, pig or horse |
| EIEIO | Follower of ducks, sheep or pigs |
| EIEIO | Follower of pigs or cows |
| EIEIO | Kid's song refrain |
| EIEIO | Kiddie song conclusion |
| EIEIO | Kids' refrain |
| EIEIO | Kids' song conclusion |
| EIEIO | Kids' song refrain |
| EIEIO | Kindergarten refrain |
| EIEIO | Kindergarten song refrain |
| EIEIO | Letters after many animal names |
| EIEIO | Letters associated with animal sounds |
| EIEIO | Letters associated with many animal sounds |
| EIEIO | Letters for Old MacDonald |
| EIEIO | Letters from a children’s chorus |
| EIEIO | Letters from down on the farm? |
| EIEIO | Letters heard after "cow," "pig" and "horse" |
| EIEIO | Letters in a children's refrain |
| EIEIO | Letters in the chorus of "Old McDonald Had a Farm" |
| EIEIO | Letters in the refrain of "Old MacDonald" |
| EIEIO | Letters on a farm? |
| EIEIO | Letters sung as mi, mi, re, re, do |
| EIEIO | MacDonald's jingle? |
| EIEIO | Mi-mi-re-re-do, in a children's song |
| EIEIO | Nonsensical refrain |
| EIEIO | Noted preschool sequence? |
| EIEIO | Nursery refrain |
| EIEIO | Nursery school refrain |
| EIEIO | Nursery song refrain |
| EIEIO | Nursery-rhyme refrain sung to the tune “mi-mi-re-re-do” |
| EIEIO | Old MacDonald refrain |
| EIEIO | Preschool song ender |
| EIEIO | Refrain consisting of vowels |
| EIEIO | Refrain from childhood |
| EIEIO | Refrain from children's singing? |
| EIEIO | Refrain from farming? |
| EIEIO | Refrain from nursery singing |
| EIEIO | Refrain from preschool |
| EIEIO | Refrain from singing as a child? |
| EIEIO | Refrain from singing in kindergarten? |
| EIEIO | Refrain from solving this puzzle? |
| EIEIO | Refrain in "Old MacDonald" |
| EIEIO | Refrain in 51-Across that accompanies the sounds at 24-, 37- and 47-Across |
| EIEIO | Refrain in a children's song ... or a literal feature of 17-, 25-, 42- and 55-Across |
| EIEIO | Refrain on Old MacDonald's farm |
| EIEIO | Rustic refrain |
| EIEIO | Sequence sung by kids |
| EIEIO | Singalong quintet |
| EIEIO | String in a kids' song |
| EIEIO | String of letters sung in "Old MacDonald Had a Farm" |
| EIEIO | String of nonsense letters in "Old MacDonald Had a Farm" |
| EIEIO | String of nonsense letters in "Old McDonald Had a Farm" |
| EIEIO | String of vowels seemingly unrelated to the narrative of Old MacDonald and his farm animals |
| EIEIO | Sung vowel sequence |
| EIEIO | Sung vowels |
| EIEIO | Three-note refrain |
| EIEIO | Trailer for farm animals? |
| EIEIO | Vowel sequence in the "Old MacDonald" lyrics |
| EIEIO | Vowels in a children's song refrain |
| EIEIO | Vowels repeated after a new farm animal is named |
| EIEIO | Vowels sung after "and on that farm he had a duck" |
| EIEIO | Vowels sung in "Old McDonald Had a Farm" |
| EIEIO | What goes after cows, ducks and pigs? |
| EIEIO | What might come after a cow or a sheep? |
| EIEIO | What the seven longest Across answers have in common |
| EIEIO | “Old MacDonald” letters |
| EIEIO | “Old MacDonald” refrain |