http://www.mangago.zone/read-manga/tawara_neko_to_machigai_jinsei/
http://www.mangago.zone/read-manga/k_on/
http://www.mangago.zone/read-manga/kaidan_tochuu_no_big_noise/
http://www.mangago.zone/read-manga/howling/
http://www.mangago.zone/read-manga/shounen_note/
http://www.mangago.zone/read-manga/kono_oto_tomare/
http://www.mangago.zone/read-manga/mashiro_no_oto/
http://www.mangago.zone/read-manga/shigatsu_wa_kimi_no_uso/
http://www.mangago.zone/read-manga/detroit_metal_city/ (this one is funny) :)
http://www.mangago.zone/read-manga/sakamichi_no_apollon/
http://www.mangago.zone/read-manga/rock_me_amadeus/
http://www.mangago.zone/read-manga/soul_catchers/
http://www.mangago.zone/read-manga/music_of_marie/
Sorry but Kindly recommend me a non romance manga which involves around music related such as piano, dancing..I've already read piano no mori, coda!!!
Please do tell me !Thanks a lot in advanceヾ(☆▽☆)