My dad, my grandfather, two of my dad's cousins, their mother Carin, my mum, me and my grandmother. As Nils is not in the picture, I suppose he may be the photographer.
In spite of me looking rather determined to learn there at age 1½, I never got any good at it. My parents bought a piano of their own when we moved to a bigger house in 1965, and I did take piano lessons through grade 4-6 in school - but quit after that. I just didn't have a natural talent for it - unlike my little brother, who turned out to be a lot more musical than me. Here he is at Christmas 1968 (~ 7 years old), at the piano in our living room. (Christmas tree in the background.) This piano was brown, I'm not sure what kind of wood.
In my maternal grandparents' house there was also a piano, but I have searched my albums in vain for a photo that shows it. In my mind, I can see quite clearly though: Big and black, opposite the fireplace; and at Christmas, the Christmas tree to the left of it.
In my paternal grandparents' house, there was no piano - but when I was little there was a small old pump organ, which I think fascinated me even more than pianos, as besides the pedals to tread, it also had that row of little buttons (or whatever you call them) to push and pull. I can't find that organ showing in any photo either. It looked a little bit like the photo below (found online from some auction site) - but simpler, without the fancy decorations. I can't recall either of my grandparents ever playing it, though - nor my father.