maybe this one
http://www.mangago.zone/read-manga/shigatsu_wa_kimi_no_uso/
(if that is the one there is also an anime of it)
if its yaoi then i know but i forgot too
no help
but i seemed to remember theres a 'muse' title in it
like 'youre my muse'
but girl you could be my muse
it's not this one, I read shigatsu wa kimi no uso recently so I still remember the storyline ^.^
But thanks for your reply~
I searched muse but I still can't find it, but thank you for your suggestion (๑•ㅂ•)و✧
I got this picture in my head but I don't remember where I saw it, maybe it was manga, j-drama, k-drama or maybe it just some music video T.T
But I will be really thankful if you know it!
The things I remember just there was a student, she/he (i don't remember the gender) can play one music instrument (it's either piano/violin) then that student was asked by the teacher to go to the music room and there she/he met someone. If I'm not mistaken, that person was a piano tuner (sorry I don't know the term ^.^).
Thank youuu