Abstract: A user terminal apparatus is provided. The user terminal apparatus includes a communicator configured to communicate with an external apparatus; a detector configured to detect a touch operation of a user with respect to the user terminal apparatus; and a processor configured to control the communicator to generate a control command for controlling at least one of a plurality of speakers according to a type of the touch operation and configured to transmit the generated control command to the external apparatus.

Abstract: A method of controlling content by using line interaction includes displaying a play bar region, representing a reproduction state of the content, on a touch screen, displaying an object, representing a function associated with reproduction of the content, near a reproduction time of the reproduction bar region, receiving a user input with respect to the play bar region through the touch screen, determining control information about the content, based on the received user input, and controlling the content according to the determined control information.