I'm not gonna hold your hand. Watch it or don't. You asked about animu with classical sound. It's a story set in a music college, with a strong reliance on classical music.
The OST is disappointing, as I recall, as it only has the original pieces composed for the anime, but it's really only a small part of what's played in this show.
Nodame is the ultimate waifu. The music is great, but really, it's all about Nodame.