A Famous Mountain
A Famous Mountain in the North of Tokyo
A Famous Volcano in the North of Tokyo
So, the Famous Volcano
(This is not Yokohama of today, since Yokohama is a famous sea port on the Bay of Tokyo...)
http://www.mu-tech.co.jp/FirstSongWeb/happy_birthday_to_you_arabic.mid
Source: http://www.asahi-net.or.jp/~hb9t-ktd/music/Japan/Studio/Midi/Traditional/happy_birthday_to_you.html