Patent ID: 7495165

Claim:
A method for editing performance data using a computer system having a display, said method comprising the steps of: controlling the computer system to display, on a screen of the display, a plurality of layers that are visually arranged in parallel in a predetermined display order, said plurality of layers include graphical representations of note information based on performance data, wherein each of said plurality of layers is assigned to a different type of articulation to be added to a musical tone to be generated based on the performance data; providing an instruction to rearrange the predetermined display order of the plurality of layers displayed on the screen of the display; controlling the computer system to rearrange the predetermined display order of the plurality of layers displayed on the screen of the display; and graphically attaching an execution icon at a prescribed position onto one of said plurality of layers that is displayed on the screen of the display, wherein said attached icon is a graphical icon and represents execution-related data for adding, to the musical tone to be generated, a predetermined type of articulation to which said one of said plurality of layers is assigned, wherein said step of attaching the execution icon causes the corresponding execution-related data to be incorporated into the performance data being edited.