Who knows this???

unfortunately, i couldn't find it, and i also couldn't find it on baka-updates
But the mangaka is Tokoro Kemeko and this is one of their manga: http://www.mangago.zone/read-manga/nibiiro_musica/

There's obviously the title on the page and if it isn't in mangago or myreadingmanga, I guess it's not translated yet

Thank you ヾ(❀╹◡╹)ﾉ~ hope this will be translated. ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄