@dino Here is "Avatar's Love (Kalimba Cover) | Kalimba Academy":
CE-C--B-
--zzzzz
E and the first C are low, B and the second C are high. I couldn't include the next notes because they contain a combination of notes that cannot be recreated accurately in a town/island tune. But not because they're not all natural notes, because the original song is all natural notes. It's because it requires two F's, one an octave away from the other, and there is only one F in Animal Crossing to work with, right in the middle. So I had to change the key, which moved the song away from the only key that would work with all natural notes. I hope the notes I was able to include are enough.
High A, low C. This one was a bit tricky to make out, so if it doesn't sound quite right, please let me know, and I can try it again.