The orchestra spend more time than you’d think practicing their instruments, as well as generally ensuring their upkeep. They may not be fastidious about their clothes, and they have few other possessions that they pay any heed at all, but when it comes to their instruments, there can be not a blemish on them. Gwin’s cello is always polished to a mirrored perfection, so clear you can see your face in it. And Kohaku, who literally looks like he’s never given a damn about the appearance of anything, ensures that the white violin is spotless.
It’s one reason they usually carry their instruments in their their protective cases. In all honesty, if they got injured, Gwin or Kohaku probably wouldn’t rush to seek a doctor, but they would, without hesitation, pay richly if they thought that anything was out of place with their instrument. For that reason, the group may not know where to find the local doctor in most towns, but you can bet they know the location of almost every violin maker and piano tuner in the land. They maintain a small supply of things like strings (just in case); but you can imagine that their first-aid kit for humans is not so well stocked!