Goosehouse (artists of Shigatsu's OP) is awesome. My favorite song "Oto no naru Hou e" (Silver spoon II ED) was also by them.
Edit: Episode 8, my favorite scene
2nd Edit (wait, is this even allowed?):
*sighs*
I'm so sad and heartbroken that only few people here discuss about this amaaazing anime. *sulks*
This kind of anime (which has classical music theme) is rare. I only know two others like this:
Nodame Cantabile
La Corda
and I love them both to the depths of my soul. Shigatsu wa kimi no uso is obviously superior in animation (Heck, Takeshi and Emi play scales so beautifully it gives me goosebumps). Haven't watch the 9th yet and I'm excited for it.
Please inform me if you know any other anime like these. Of course, I'm not talking about something like Beck or K-on, which are about Bands, or Rock music.