Uncommon Item (Far Cry 5)

I was very interested in one moment, but I could not find information anywhere.
In the region of Faith, by Seeley's Hut, next to the fire, there is a guitar that shimmers like it can be taken. But it is impossible to do this, and it seems that she does not appear in any tasks either.
Does anyone know if this is a bug or what? Do you also?