Yes, as of episode 11 it's one of the best homosexual relationships I've seen in anime so far (this is hard to say with a straight face, Xd). Seriously though, I'm really appreciating this anime because it manages to have two same-sex characters develop feelings for each other without being super contrived and ridiculous, which is usually the case with gays presented in anime. It's more like a subplot to the overarching storyline and that makes it feel so much better. Hibike! Euphonium is not a yuri-anime with a bit of music, it's a muscal anime with a bit of romance. The romance just happens to be between two characters of the same sex, among others. Now it's not done airing yet, so I don't want to sing it's ultimate praises, but episode 11 was fucking great.