I am a violaplayer in Gothenburg Symphony Orchestra but this room is in my mother’s house. It suits two grownups but there is space for a child too. My mother (70+) lives on her own in a big house with two cats. Violin/viola/cello/guitar could probably be organised for you to borrow.
She has no possibility to support you financially but you will of course stay there for free.
Please contact me for further questions or details!