Hyouka, Hibike! Euphonium Recommendations
Two series based around school clubs and interaction between its members. Excellent animation, art quality, and use of color. Very good directing style as well. They give off similarly warm vibes, and almost any standalone frame from either can be seen as a work of art.
Although one of them is about a music club and the other is about a club that solves mysteries, both shows deal with common themes that affect high school kids (talent, jealousy, hard work). The main characters are also kind of similar in that they don't like getting involved in certain things. Both of them are also done by the same studio so they have similar character designs and they both have a lot of romantic relationship building without any progress (if you're into that thing). Sound Euphonium is a lot like K-on! at first, but later on it becomes similar to the festival arc
They're both from KyoAni. The atmosphere is pretty similiar too. You know the one that makes your head goes "Ahh, it must be based from a novel!". Both animation is real high quality, I mean c'mon, it's KYOANI. And I do think Kumiko and Oreki character are similiar in some ways. Just try to watch it, if you like one of the show, you won't regret watching the other.