A content control device, comprising: a plurality of controls (RE S) which are operable by a user and to which a plurality of parameters for controlling properties of a content containing at least one of sound and video are respectively assigned, each of the plurality of controls (RE S) outputting a first indicated value (v S) in accordance with a manual operation amount of the control (RE S); an indicated value outputting means (RE M, PO, ED) configured to output a time-varying second indicated value (v M); a setting information creating means configured to previously create setting information (TB RE,TB PR), a parameter value determining means configured to determine the values of the plurality of parameters corresponding to the second indicated value (v M) respectively in accordance with the second indicated value (v M) and the setting information (TB RE,TB PR), and content controlling means configured to control the properties of the content in accordance with the plurality of parameters, characterized in that the setting information creating means is configured to previously create the setting information (TB RE,TB PR) for determining a range of each of the respective values of the plurality of parameters in accordance with a range of the second indicated value (v M); the parameter value determining means include a revising means configured to revise each of the determined values of the parameters in accordance with the first indicated value (v S) outputted for the control (RE S) assigned to the parameter; and and in that the content controlling means is configured to control the properties of the content in accordance with the determined or revised values of the plurality of parameters. a plurality of controls (RE S) which are operable by a user and to which a plurality of parameters for controlling properties of a content containing at least one of sound and video are respectively assigned, each of the plurality of controls (RE S) outputting a first indicated value (v S) in accordance with a manual operation amount of the control (RE S); an indicated value outputting means (RE M, PO, ED) configured to output a time-varying second indicated value (v M); a setting information creating means configured to previously create setting information (TB RE,TB PR), a parameter value determining means configured to determine the values of the plurality of parameters corresponding to the second indicated value (v M) respectively in accordance with the second indicated value (v M) and the setting information (TB RE,TB PR), and content controlling means configured to control the properties of the content in accordance with the plurality of parameters, characterized in that the setting information creating means is configured to previously create the setting information (TB RE,TB PR) for determining a range of each of the respective values of the plurality of parameters in accordance with a range of the second indicated value (v M); the parameter value determining means include a revising means configured to revise each of the determined values of the parameters in accordance with the first indicated value (v S) outputted for the control (RE S) assigned to the parameter; and and in that the content controlling means is configured to control the properties of the content in accordance with the determined or revised values of the plurality of parameters.