Manga where girl falls for the most unsocial male lead. That is cool and talented at something.

Hibi ChouChou maybe, though the girl's pretty unsocial herself

________________
"I don't know everything, I'm just really good at explaining the past, so it seems like I know everything"

Issho ni Neyou yo no school life
Namida Usagi - Seifuku no Kataomoi I guess

________________
in need of romance?
uncommon, sad, sweet

Cy-believers-pretty much what you want.
Otokomae! Beads club-Again similar to cy-believers, though this guy isn't as pathetic as the other 2 in cy-believers lol.
Nousatsu rock shounen and it's sequel...Though to be honest debatable if he is unsociable if he can do that XD
Venus capriccio I think...Its been a long while since I read it...but I'm pretty sure the guy is unsociable and good at music, not sure though.
Chihayafuru-It fits pretty well, more a sports manga but still has romance.

Hana no Namae and maybe Atsu Atsu Trattoria .

________________
If I’m upset, hold me and tell me how beautiful I am.
If I growl, retreat to a safe distance and throw chocolate.