What's the name of that song...?

Its a peaceful song, its well known, it is good to wake up to for like an alarm in the morning and it is played on the flute and its played in an orchastra. It has no lyrics, and it is wellknown as a morning type song, and i wana use it as a alarm tone because it would wake me up peacefully, im pretty sure like everyone knows this song!! It goes (if this helps) Do Do Do Do Do Do, Do Do Do Do deedledeedle. I think it's by beethoven...