well i played it before but i threw away the sheet music and now i have no idea what the song name is to download it again.

the only way i can describe it is the first few notes are:

middle C, Eb above C, G above Eb
Bb below middle C, D above mid C, G above D
Ab below mid C, mid C, same G's as before
x2

i have no idea how else to explain it any easier... i'll try to get a midi up

i don't know actually.. it's such a common chord progression. it somehow sounds familiar to me but i'm not sure.. do you have any idea which anime it could have been from?