On Natalie MacMaster and Donnell Leahy's new album 'Canvas', the pair stretch the boundaries of Celtic folk, experimenting with global sounds combining their virtuosic fiddle playing with more contemporary production and innovative arrangements, incorporating new instrumentation and contributing musicians. Special guests include celebrated Classical cellist Yo-Yo Ma, and Grammy award winning Americana music/Appalachian banjo/fiddle player Rhiannon Giddens.