Fear of the Happy Birthday song

by KiKi
(East Coast)

Every since I can remember my little brother, now 21 has been afraid of the Happy Birthday song. When he turned 1, I can remember him running behind the sofa in fear of the song. When he turned 2 he did the same thing.

Now that he has turned 21 today he is still running (not behind the sofa), and I thought that maybe he would grow out of it, but he didn't. I am not for sure if there is a name for this phobia, but if there is would someone please let me know. Thank you.