A synchronized performance process includes performing a first portion of a musical work using musicians and performing a second portion of the musical work using a computer. Vortex generators are associated with the flow control surface. When the device is powered on for the first time, a device-resident program is executed and the program encrypts at least one rights object with a device-specific encryption key. The block is inserted in the second channel. The FFE is coupled to the noise canceller for eliminating the pre-cursor in the second signal and thus generates a third signal.