ア The song's melody is very popular all over the world but some people dont know ts Words. The original melody composed by Mildred Hill was different from that of today's 9 birthday to you.” / The *origin of the song, including who made the melody and the words, is not well knoWn. エエ We should find out where the women who mad *(注) origin 起源 le the original song are Ving no