11. A method as in claim 10 , wherein performing an editing function includes changing at least one or more parameters of a target-cost function.
11. A method as in claim 10 , wherein performing an editing function includes changing at least one or more parameters of a target-cost function. 13. A method as in claim 11 , wherein the edited target-cost function is selected from one of a duration function, a pitch function and an amplitude function.