Just imagine the masterpieces that'll come out of this! The guy singing like he's in a metal band with a jazz piano underneath. The sultry female lounge singer who has jazz piano under all her songs. The rapper who raps over jazz piano for some reason. It's sure to skyrocket all of these things right to the tops of the charts where they belong, because hey, nothing says "creative expression" like being too lazy to learn your art and having a computer guesstimate it for you. Nice work, Microsoft.