Contemporary notions of musical virtuosity redevelop historic concepts and demonstrate that our present understanding of virtuosity in western art music has shifted from what seemed, for a time, to be a relatively clear and stable definition. In the field and the academy, lively debates around the definition and/or value of virtuosity have always elicited strong and varied ideas. In the twenty-first century, frictions have emerged between traditional definitions of virtuosity and contemporary practices that emphasise collaboration and blur roles between performers, composers, and improvisers. Contemporary Musical Virtuosities embraces the evolving processes, practitioners, and presentation models within twenty-first century art music.