looking for this yaoi manga

hi, guys, i need help finding this yaoi. its about two guys who had been sex friends for a while. one guy was highschooler who was in an accident and can't play piano/violin anymore because his hand got hurt. Another guy was a college student who was also kinda depressed for some reason... so they would meet at the college guy's place and have sex. Maybe they became a couple later? not sure. that's all I remember. I don't know where to start looking, so... thank you in advance =). p/s it's not a oneshot, I think it's a whole volume.