Mr. Adventure wrote:
again - how they used music there?
Mothra's song is sung by the fairies to call to Mothra.
And the tiny singing fairies are kidnapped by an evil show-biz type who forces them to perform at his night club in Tokyo, which is what triggers Mothra's attack on the city.
And more: music is occasionally used to calm the Monster in the old Universal FRANKENSTEIN movie, a schtick that was perpetuated in Mel Brook's YOUNG FRANKENSTEIN.
And didn't MIGHTY JOE YOUNG respond to "Beautiful Dreamer"?