5 words for ADFFMO 1-letter words

Filter answers for the "adffmo" by length:
Sort
Alphabet (A–Z)
Alphabet (Z–A)
Scrabble score

1 letter (5)

a d f m o
E.g. Puccini’s Che gelida manina
?
A
?
R
?
I
?
A
Hint 1 meaning
An air or song; a melody; a tune.
Hint 2 anagram
AARI
Hint 3 another clue
Solo
9 +1