Fresh off his acclaimed solo album Fountain Fire, Bill MacKay is back to harmonic atom-splitting with all six of his guitar strings in this new collaboration with cellist Katinka Kleijn, STIR.Bill is an avid collaborator), and over the past seven years, he and Katinka have used live performance to build their chemistry into a surprising, organic density, with sharply-etched colors drawn from avant-rock, folk, jazz classical and experimental music. It is at once an unlikely and perfect pairing as both musicians are known not only for their chops, but for their creativity, curiosity and range. Together they form a fluid, intuitive, dialogical and improvisational pair.