Hidamari Sketch, K-On! Recommendations
K-ON is basically Hidamari sketch with musical setting.
Both set in super-positive ideal world filled with super-friendly characters.
Both story featured four main heroine attended in same school with similar interest, one is art and other is music.
Both series have common stereotyped manga characters
And Yui is Yuno lacking one hairclip.
Both Hidamari Sketch and K-On! are slice-of-life comedies with four female high school students as main characters, who attempt to transform their life experiences into artistic expressions. The latter similarity places K-On! much closer to Hidamari Sketch than it is to Lucky Star.
Both are easygoing slice-of-life comedy animes about four high school girls, and the characters in one have similar personalities to that of the other. However, the main theme in K-On is music, while Hidamari Sketch focuses more on art.