14. The system of claim 9 , wherein the metadata request from the user further comprises an oral command.
14. The system of claim 9 , wherein the metadata request from the user further comprises an oral command. 15. The system of claim 14 , wherein the metadata request specifies output of the selected metadata to occur by one of: on demand, during playback of primary media content, immediately preceding playback of primary media content, immediately following playback of primary media content, and at a regular interval.