what did i just type

So I randomly decided to visit the Official Pokémon website (pokemon.com), I played a few games, and now I have a question. Where have I heard the music from Emolga's Apple Adventure! before? It sounds so familiar, I think it was from HGSS, somewhere in the Johto region or something...I racked my brain so many times trying to figure out where I heard that music before...was it Olivine City? I just can't quite put my finger on it. Does anyone here know? Thanks for reading.

P.S. I think I'll make a(nother) Pokémon Trainer Club account now. (What? I forgot my username and password for my old one plus I registered my Black for the Dream World but I deleted the data in Black so now I can't use Dream World for my Black lol) but signing up is so hard...you need your parents to make accounts too and stuff...