...aka Folk Wot You Know That Know Folk Wot Are In Bands. Tenous connections along the lines of cousins who once sold a sausage roll to PJ Harvey in Plymouth's Greggs always welcome.

My two non-exciting connections to get things going :

SISTER : once worked as staff nurse with Sarah from Belle & Sebastian.
THE GOOD LADY : ex-boss is father of drummer in Metronomy.

Your go.