Patent 8116179 was granted and assigned to Apple (company) on February, 2012 by the United States Patent and Trademark Office.
Facilitating analysis is disclosed. A master track comprising one or more previously recorded inputs to one or more computer system components is played. Two or more sets of instrument output are received, each set generated during at least a corresponding portion of the playback of the master track. At least a selected portion of the instrument output is displayed in a manner that allows visual correlation of the displayed instrument output.