The idea of song "ownership" was very strong in communities that maintained a singing tradition in this part of the UK.

I have very seldom seen revival singers overtly claiming ownership of a song although regulars at a club or session will usually avoid overlapping each other's repertoire.

I have only once seen somebody visibly upset about "their" song being performed. Both the singer and the "owner" sang the arrangement off a Martin Carthy LP note for note.