JP2010282711A - Apparatus and method for supporting selection of content list - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for supporting selection of content list, enabling a user to intuitively know the content registered in a content list, from a screen display at a glance. <P>SOLUTION: In a play list selection screen, a ratio of the number of musical pieces for each genre to the total number of musical pieces registered in a play list is calculated as a genre ratio. The calculated genre ratio is displayed as crossbar charts 400-440, the user can visually know the ratio of the musical pieces for each genre in the play list, to enables the user to intuitively know what kind of musical pieces are registered in each play list, from the screen display at a glance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a content list selection support device and a content list selection support method, and more particularly to a content list selection support device and a content list selection support method that support selection of a content list by a user.

  2. Description of the Related Art In recent years, content reproducing apparatuses that reproduce content such as music and moving images can store a large number of contents in a large-capacity storage medium, and can select and reproduce desired contents. It is also possible to play back content in accordance with the contents of a playlist in which a plurality of contents are listed in the order of playback.

  FIG. 6 shows an example of a playlist selection screen for the user to select a desired playlist from a plurality of playlists set in the content reproduction apparatus. The playlist selection screen is configured as a touch panel. In the example of FIG. 6, three playlist names of playlist 1, playlist 2, and playlist 3 are displayed. When the user selects a playlist by touching the desired playlist name on the playlist selection screen, the content playback apparatus plays back the content according to the contents of the selected playlist.

  As a technique related to a playback device that plays back content (music data), a technique for displaying the genre name of music data recorded in a disc and the number of music data belonging to each genre on the screen is disclosed (for example, , See Patent Document 1).

Japanese Patent Laid-Open No. 2002-1000016

  By the way, on the playlist selection screen as shown in FIG. 6, only the playlist name of each playlist is displayed. The playlist name is not necessarily a name that directly represents the contents of the registered content. Further, when there are a plurality of playlists having similar names, it becomes difficult to identify them only by the playlist name. For this reason, it is difficult for the user to intuitively understand what content is registered in each playlist simply by looking at the playlist name.

  In response to this problem, if the content playback apparatus has a function of confirming the contents of each playlist, there is a proposal of confirming the contents of each playlist one by one using the confirmation function. Checking the contents requires a complicated operation and takes a lot of time. As a result, there is a problem that the user cannot easily select a desired playlist.

  If the technique described in Patent Document 1 is applied, the genre names of the contents registered in the playlist and the number of contents for each genre can be displayed on the screen. By viewing this display, the user can grasp how many types of content are registered in the playlist. However, in this technique, the user needs to check the number of contents belonging to each genre displayed on the screen one by one. Therefore, it is difficult to understand at a glance what kind of content is registered in the playlist.

  The above-described problem also occurs when the user selects a desired folder in the computer and executes a file as content registered in the folder. That is, on the folder selection screen for the user to select a desired folder from a folder list in which a plurality of folders are listed, only the folder name of each folder is displayed. Therefore, it is difficult for the user to intuitively understand what files are registered in each folder simply by looking at the folder name. As a result, the user cannot easily select a desired folder. In this specification, not only a playlist but also a folder list is referred to as a content list.

  The present invention has been made to solve such problems, and enables a user to intuitively grasp what content is registered in the content list from a screen display. For the purpose.

  In order to solve the above-described problem, in the present invention, the ratio of the number of contents for each content attribute to the total number of contents registered in the content list is calculated as a content attribute ratio, and the calculated content attribute ratio Is displayed as a graph.

  According to the present invention configured as described above, the user who sees the content attribute ratio displayed in a graph visually determines how much content of each content attribute occupies in the entire content list. It can be grasped and it can be grasped intuitively at a glance from the screen display what kind of content is registered in the content list.

It is a block diagram which shows the example of whole structure of the music reproduction system provided with the play list selection assistance apparatus by this embodiment. It is a figure which shows the structural example of the various information used with the music reproduction system by this embodiment. It is a figure which shows the example of the play list selection screen by this embodiment. It is a flowchart which shows the operation example of the music reproduction system by this embodiment. It is a block diagram which shows the modification of the whole structure of the music reproduction system by this embodiment. It is a figure which shows the example of the conventional play list selection screen.

  Hereinafter, an embodiment of the present invention (hereinafter referred to as “the present embodiment”) will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of a music playback system 120 including a playlist selection support device 100 (corresponding to the content list selection support device of the present invention) according to the present embodiment. The playlist selection support apparatus 100 assists the user in easily selecting a playlist (corresponding to the content list of the present invention) in which a plurality of music pieces (corresponding to the content of the present invention) are listed in the playback order. It is. As shown in FIG. 1, in addition to the playlist selection support apparatus 100, the music playback system 120 includes an operation input unit 140, a display 160, a speaker 180, a music information storage unit 200, a playlist information storage unit 220, and a playback control unit. 240 is comprised.

  The operation input unit 140 inputs a user instruction to the music playback system 120. In the present embodiment, the operation input unit 140 includes an input device such as a touch panel or a remote controller, for example. The display 160 displays a playlist selection screen generated by the playlist selection support device 100. The speaker 180 outputs a sound based on the music data reproduced by the reproduction control unit 240 to the outside. The function of the playback control unit 240 will be described later.

  The music information storage unit 200 stores music information related to each music. FIG. 2A is a diagram showing details of the music information of the present embodiment. As shown in FIG. 2A, the music information includes a music name indicating the name of the music and music data of the music as information.

  The playlist information storage unit 220 stores playlist information related to a playlist in which a plurality of songs are listed in the order of playback. FIG. 2B is a diagram showing details of the playlist information of the present embodiment. As shown in FIG. 2B, the playlist information includes a playlist name indicating the name of the playlist (corresponding to the content list name of the present invention), and a song name indicating the name of the song registered in the playlist. (Corresponding to the content name of the present invention), the genre of the music (corresponding to the content attribute of the present invention), and the reproduction order of the music are included as information. In the present embodiment, the specific value of the item information “genre” is set to any one of “ROCK (rock)”, “POP (pop)”, “OLDIES (oldies)”, and “OTHERS (other genres)”. Has been.

  Next, the internal configuration of the playlist selection support apparatus 100 will be described. As illustrated in FIG. 1, the playlist selection support apparatus 100 includes an operation reception unit 260, a song number calculation unit 280, a genre ratio calculation unit 300, a playlist selection screen generation unit 320, a playlist selection screen display control unit 340, and a scan. A playback control unit 360 is provided. The operation receiving unit 260 corresponds to the content attribute selection receiving unit of the present invention. The music number calculation unit 280 corresponds to the content number calculation unit of the present invention. The genre ratio calculation unit 300 corresponds to the content attribute ratio calculation unit of the present invention. The playlist selection screen generation unit 320 and the playlist selection screen display control unit 340 correspond to the display control unit of the present invention.

  The operation accepting unit 260 accepts an input operation required when the user selects a desired playlist from the plurality of playlists set in the playlist information storage unit 220 via the operation input unit 140. For example, the operation accepting unit 260 accepts an operation for instructing execution of a playlist selection function for selecting a desired playlist (hereinafter referred to as an execution instruction operation for the playlist selection function) via the operation input unit 140. In this case, the operation reception unit 260 notifies the music number calculation unit 280 that the play selection function execution instruction operation has been received.

  In addition, the operation reception unit 260 reproduces from each playlist included in the playlist selection screen displayed on the display 160 under the control of the playlist selection screen display control unit 340 via the operation input unit 140. An operation for selecting any playlist as a target playlist is accepted. In this case, the operation reception unit 260 outputs target playlist information indicating the playback target playlist selected according to the received operation to the playback control unit 240.

  In addition, the operation reception unit 260 can select any one of the genres included in the playlist selection screen displayed on the display 160 under the control of the playlist selection screen display control unit 340 via the operation input unit 140. An operation for selecting a genre is accepted. In this case, the operation reception unit 260 outputs target genre information indicating the genre selected according to the received operation to the playlist selection screen generation unit 320.

  In addition, the operation reception unit 260 can select any one of the playlists included in the playlist selection screen displayed on the display 160 under the control of the playlist selection screen display control unit 340 via the operation input unit 140. An operation for selecting any genre in the playlist is accepted. In this case, the operation reception unit 260 outputs target playlist / genre information indicating the playlist and genre selected according to the received operation to the scan reproduction control unit 360.

  When receiving a notification from the operation accepting unit 260 that the play selection function execution instruction operation has been accepted, the number-of-music-number calculating unit 280 is based on the playlist information stored in the playlist information storage unit 220. By calculating the number of searched items using the information “playlist name” and “genre” as search keys, the number of songs for each genre is calculated for each playlist. Then, the song number calculation unit 280 outputs the song number information indicating the number of songs for each genre calculated for each playlist to the genre ratio calculation unit 300. As shown in FIG. 2C, the number-of-music information includes, as information, a playlist name indicating the name of the playlist, a genre of songs registered in the playlist, and the number of songs of the genre.

  Based on the number-of-music information output from the number-of-music calculation unit 280, the genre ratio calculation unit 300 sets the total number of songs registered in the playlist (that is, the number of songs of all genres) for each playlist. The ratio of the number of songs for each genre is calculated as a genre ratio. Then, the genre ratio calculation unit 300 outputs genre ratio information indicating the genre ratio calculated for each playlist to the playlist selection screen generation unit 320. As shown in FIG. 2D, the genre ratio information includes, as information, a playlist name indicating a playlist name, a genre of music registered in the playlist, and a ratio of the number of songs in the genre. .

  The playlist selection screen generation unit 320 is based on the playlist information stored in the playlist information storage unit 220, and the playlist desired by the user is selected from a plurality of playlists set in the playlist information storage unit 220. A playlist selection screen for selecting is generated. In the present embodiment, the playlist selection screen generation unit 320 displays a horizontal bar graph that graphically displays the ratio of the number of songs for each genre for each playlist based on the genre ratio information output from the genre ratio calculation unit 300. Generate a playlist selection screen including the generated horizontal bar graph. The playlist selection screen display control unit 340 displays the playlist selection screen generated by the playlist selection screen generation unit 320 on the display 160.

  FIG. 3A is a diagram illustrating a display example of a playlist selection screen according to the present embodiment. The playlist selection screen is configured as a touch panel. In the playlist selection screen of FIG. 3A, the genres (“ROCK”, “POP”, “OLDIES”) are shown for each playlist represented by the playlist names of playlist 1, playlist 2, and playlist 3. And horizontal bar graphs 400, 420, and 440 in which the ratio of the number of pieces of music for each “OTHERS”) is displayed with the length of the horizontal bar. Also, buttons 500, 520, and 540 are all displayed on the right side of the horizontal bar graphs 400, 420, and 440, respectively. All buttons 500, 520, and 540 are buttons for instructing to sequentially play all the songs registered in the playlist corresponding to the horizontal bar graphs 400, 420, and 440, respectively. In the playlist selection screen of FIG. 3A, horizontal bar graphs 400, 420, and 440 corresponding to the playlists 1 to 3, respectively, are displayed from the top in the order in which the playlist information is stored in the playlist information storage unit 220. Has been.

  The playlist selection screen of FIG. 3A further includes a legend display area 600 for the genre “ROCK”, a legend display area 620 for the genre “POP”, a legend display area 640 for the genre “OLDIES”, and a genre “OTHERS”. The legend display area 660 is provided.

  In the playlist selection screen of FIG. 3A, the operation accepting unit 260 accepts an operation of touching and selecting any legend display area from the legend display areas 600 to 660 via the operation input unit 140. . In this case, the operation reception unit 260 outputs target genre information indicating the genre corresponding to the legend display area selected according to the received operation to the playlist selection screen generation unit 320. When the target genre information is output from the operation reception unit 260, the playlist selection screen generation unit 320, based on the genre ratio information output from the genre ratio calculation unit 300, the number of songs in the genre indicated by the target genre information. The playlist selection screen in which the horizontal bar graphs 400 to 440 corresponding to each playlist are rearranged in the order of the higher ratio is generated. Then, the playlist selection screen display control unit 340 displays the playlist selection screen generated by the playlist selection screen generation unit 320 on the display 160.

  FIG. 3B shows a case where the legend display area 640 of the genre “OLDIES” is selected from the legend display areas 600 to 660 when the play list selection screen of FIG. This is a display example. In the playlist selection screen of FIG. 3B, horizontal bar graphs 400 to 440 corresponding to the playlists 1 to 3, respectively, in descending order of the ratio of the number of songs of the genre “OLDIES” corresponding to the selected legend display area 640. Are sorted and displayed.

  In the playlist selection screen of FIG. 3, the operation reception unit 260 performs an operation of selecting a desired genre in a desired playlist as a genre to be scanned and reproduced via the operation input unit 140 (FIG. 3). In this example, an operation of touching a horizontal bar of a desired genre from among a plurality of horizontal bars constituting a horizontal bar graph corresponding to a desired playlist is received. In this case, the operation reception unit 260 outputs target playlist / genre information indicating the playlist and genre selected according to the received touch operation to the scan reproduction control unit 360.

  When the target playlist / genre information is output from the operation receiving unit 260, the scan reproduction control unit 360 uses the target playlist / genre information based on the playlist information stored in the playlist information storage unit 220. Similarly, the music of the genre indicated by the target playlist / genre information is specified from the music registered in the indicated playlist. Then, the scan reproduction control unit 360 outputs to the reproduction control unit 240 scan reproduction instruction information indicating an instruction to sequentially reproduce the head portion (for example, 5 seconds of the head) of each specified music piece. The scan reproduction instruction information includes music specifying information indicating the music specified by the scan reproduction control unit 360.

  In the playlist selection screen of FIG. 3, the operation reception unit 260 performs an operation of selecting any playlist as a playlist to be played back via the operation input unit 140 (in the example of FIG. 3, the horizontal bar graphs 400 to 400). Among all buttons 500 to 540 located on the right side of 460, an operation of touching all buttons corresponding to a playlist desired to be played back is received. In this case, the operation reception unit 260 outputs to the playback control unit 240 target playlist information indicating the playback target playlist selected according to the received touch operation.

  When the target playlist information is output from the operation accepting unit 260, the playback control unit 240 creates a playlist indicated by the target playlist information based on the playlist information stored in the playlist information storage unit 220. Identify registered songs. Then, the reproduction control unit 240 reads the music data of the specified music from the music information storage unit 200 and outputs the read music data to the speaker 180 in order. Thereby, the sound based on the music data of the music to be played is output from the speaker 180.

  In addition, when the scan reproduction instruction information is output from the scan reproduction control unit 360, the reproduction control unit 240 reads the music data of the music indicated by the music specifying information included in the scan reproduction instruction information from the music information storage unit 200. Then, the head portion (for example, 5 seconds of the head) of each of the read music data is output to the speaker 180 in order. Thereby, sound based on the music data to be scanned and reproduced is output from the speaker 180.

  Next, the operation of the music playback system 120 of this embodiment will be described. FIG. 4 is a flowchart showing an operation example of the music playback system 120 according to the present embodiment. The flowchart shown in FIG. 4 starts when the music playback system 120 is turned on.

  First, the operation accepting unit 260 determines whether or not an operation instructing execution of a playlist selection function has been accepted via the operation input unit 140 (step S100). If operation accepting unit 260 determines that an operation for instructing execution of the playlist selection function has not been accepted (NO in step S100), the process transitions to step S100. On the other hand, when operation receiving unit 260 determines that an operation for instructing execution of the playlist selection function has been received (YES in step S100), operation receiving unit 260 indicates that the operation for instructing execution of the playlist selection function has been received. The number calculation unit 280 is notified.

  Next, the music number calculation unit 280 receives the notification that the playlist selection function execution instruction operation has been received, and based on the playlist information stored in the playlist information storage unit 220, the music for each genre. A number is calculated for each playlist (step S120). Then, the song number calculation unit 280 outputs the song number information indicating the number of songs for each genre calculated for each playlist to the genre ratio calculation unit 300.

  Next, the genre ratio calculation unit 300, based on the song number information output from the song number calculation unit 280, for each playlist, the total number of songs registered in the playlist (the number of songs of all genres). The ratio of the number of pieces of music for each genre is calculated as the genre ratio (step S140). Then, the genre ratio calculation unit 300 outputs genre ratio information indicating the genre ratio calculated for each playlist to the playlist selection screen generation unit 320.

  Next, the playlist selection screen generation unit 320 generates a horizontal bar graph displaying the ratio of the number of songs for each genre for each playlist based on the genre ratio information output from the genre ratio calculation unit 300. Then, a playlist selection screen including the generated horizontal bar graph is generated (step S160). Next, the playlist selection screen display control unit 340 displays the playlist selection screen generated by the playlist selection screen generation unit 320 on the display 160 (step S180).

  Next, the operation accepting unit 260 accepts an operation of selecting any playlist as a play target playlist from each playlist included in the playlist selection screen via the operation input unit 140. It is determined whether or not (step S200). If operation accepting unit 260 determines that an operation for selecting any playlist as a play target playlist has been accepted (YES in step S200), operation accepting unit 260 selects according to the accepted operation. The target playlist information indicating the playback target playlist is output to the playback control unit 240.

  Finally, the reproduction control unit 240, based on the playlist information stored in the playlist information storage unit 220, the music registered in the playlist indicated by the target playlist information output from the operation reception unit 260. Is identified. Then, the playback control unit 240 reads the music data of the specified music from the music information storage unit 200, and outputs the read music data to the speaker 180 in order (step S220). After the process in step S220 is completed, the music playback system 120 ends the process in FIG.

  On the other hand, if operation accepting unit 260 determines that an operation for selecting any playlist as a play list to be played back has not been accepted (NO in step S200), operation accepting unit 260 uses operation input unit 140. Then, it is determined whether or not an operation for selecting any genre in any playlist as a target for scan reproduction has been accepted (step S240).

  If it is determined that an operation for selecting a play list and genre to be scanned is accepted (YES in step S240), operation accepting unit 260 selects the play list and genre selected according to the accepted operation. The target playlist / genre information shown is output to the scan reproduction control unit 360. Next, the scan reproduction control unit 360 is registered in the playlist indicated by the target playlist / genre information output from the operation receiving unit 260 based on the playlist information stored in the playlist information storage unit 220. Similarly, the music of the genre indicated by the target playlist / genre information is identified from the current music (step S260). Then, the scan reproduction control unit 360 outputs to the reproduction control unit 240 scan reproduction instruction information (including music identification information indicating the identified music) indicating an instruction to sequentially reproduce the head portion of each identified music. To do.

  Next, the playback control unit 240 reads the music data of the music indicated by the music specifying information included in the instruction information output from the scan playback control unit 360 from the music information storage unit 200, and each of the read music data The head part (for example, the head for 5 seconds) is sequentially output to the speaker 180 (step S280). Thereafter, the process proceeds to step S200.

  If it is determined that an operation for selecting a play list and genre to be scanned / played is not accepted (NO in step S240), operation accepting unit 260 performs a playlist selection screen via operation input unit 140. It is determined whether or not an operation for selecting any one of the legend display areas 600 to 660 included in the list is received (step S300). If operation accepting unit 260 determines that an operation for selecting any legend display area has not been accepted (NO in step S300), the process transitions to step S200.

  On the other hand, when operation receiving unit 260 determines that an operation for selecting any legend display area has been received (YES in step S300), operation receiving unit 260 selects the legend display area selected in accordance with the received operation. The target genre information indicating the genre corresponding to is output to the playlist selection screen generation unit 320. Next, the playlist selection screen generation unit 320 rearranges the horizontal bar graphs corresponding to each playlist in descending order of the ratio of the number of songs in the genre indicated by the genre ratio information output from the genre ratio calculation unit 300. A playlist selection screen is generated (step S320). Next, the playlist selection screen display control unit 340 displays the playlist selection screen generated by the playlist selection screen generation unit 320 on the display 160 (step S340). Thereafter, the process proceeds to step S200.

  As described above in detail, in this embodiment, the ratio of the number of songs for each genre to the total number of songs registered in each playlist in the playlist is displayed on the playlist selection screen. It is calculated as a ratio, and the calculated genre ratio is displayed as horizontal bar graphs 400-440. According to the present embodiment configured as described above, the user can visually grasp how much each genre of music occupies in the entire playlist, and It is possible to grasp intuitively whether a song is registered from a screen display.

  In this embodiment, when any genre (legend display area) is selected on the playlist selection screen, the genre ratio of each playlist is set in descending order of the ratio of the number of songs of the selected genre. The corresponding horizontal bar graph is rearranged and displayed. According to the present embodiment configured as described above, when the user wants to select a playlist in which a large number of songs of a specific genre are registered, the user views the horizontal bar graph corresponding to the genre ratio of each playlist one by one. It is possible to grasp at a glance which playlist has a high ratio of the number of songs of the specific genre without confirming.

  Further, in this embodiment, when an operation for selecting a playlist and a genre to be scanned is accepted, the head portion of each piece of music specified by the playlist and the genre is scanned and played in order. Yes. According to the present embodiment configured as described above, the user can actually listen to a part of the music registered in the playlist and confirm in advance, and thus selects the playlist by mistake. Therefore, it is possible to avoid the possibility of troublesome time for selecting a playlist later.

  In the present embodiment, an example in which the horizontal bar graphs corresponding to the genre ratios of the playlists are rearranged in the descending order of the ratio of the number of songs in the genre (legend display area) selected via the operation input unit 140 will be described. However, the rearrangement process is not necessarily essential. However, if the process of rearranging the horizontal bar graphs corresponding to the genre ratio of each playlist wants to select a playlist in which the user has registered many songs of a specific genre, the number of songs of the specific genre This is preferable because it is possible to grasp at a glance which playlist has a high ratio.

  Further, in the present embodiment, the example in which the music specified by the playlist and the genre selected via the operation input unit 140 is scanned and reproduced has been described, but the scanning and reproduction process is not necessarily essential. However, it is preferable to perform the scan reproduction process because it is possible to avoid a possibility that the user may select the playlist by mistake and thereby troublesome to select the playlist later.

  Further, in the present embodiment, the example in which the music specified by the playlist and the genre selected via the operation input unit 140 is scanned and reproduced has been described, but the target of the scanning reproduction is not limited to this. For example, all the music registered in the playlist selected via the operation input unit 140 may be scanned and reproduced. If comprised in this way, since a user can actually listen to a part of all the music registered in the playlist and confirm it in advance, the user can later select the playlist by mistake. In this case, it is possible to avoid the possibility of re-selecting the playlist.

  Moreover, although this embodiment demonstrated the example which displays the genre ratio of each playlist as a horizontal bar graph, the display mode of the said genre ratio is not limited to this. For example, the genre ratio of each playlist may be displayed as a vertical bar graph, a pie graph, or a radar chart. Further, the ratio of the number of music pieces for three or less or five or more genres may be displayed in a graph instead of the ratio of the number of music pieces for each of the four genres as shown in FIG.

  Moreover, although this embodiment demonstrated the example which implements the playlist selection assistance apparatus 100 in the music reproduction system 120 which reproduces a music according to the content of the playlist which made music a list in reproduction order, this invention is not limited to this. . For example, the playlist selection support apparatus 100 may be implemented in a video playback system that plays back videos according to the contents of a playlist that lists videos in playback order. In addition, the playlist selection support apparatus 100 allows the file execution system to select a desired folder in the computer and execute a file (for example, a program file or a text file) as content registered in the folder. May be implemented.

  Moreover, the whole structure of the music reproduction system 120 which implements the playlist selection support apparatus 100 is not limited to the structure shown in FIG. For example, the vehicle head unit including the playlist selection support device 100 may read the music information and playlist information from an external music playback device and display the playlist selection screen. FIG. 5 is a block diagram illustrating an example of the overall configuration of a music playback system 120 ′ as a modification of the music playback system 120. As shown in FIG. 5, the music playback system 120 ′ includes a vehicle head unit 720 including a music playback device 700, a playlist selection support device 100, and a playback control unit 740.

  The music playback device 700 includes the music information storage unit 200, the playlist information storage unit 220, and the playback control unit 240 of FIG. The music reproducing device 700 can be used alone or connected to the vehicle head unit 720. When used alone, the music playback device 700 uses the music information stored in the music information storage unit 200 to play the music data of the music belonging to the playlist selected by the user under the control of the playback control unit 240. Can be done.

  When used in connection with the vehicle head unit 720, the playlist selection support device 100 included in the vehicle head unit 720 reads playlist information from the playlist information storage unit 220 of the music playback device 700, and the read playlist. Based on the information, the genre ratio of each playlist is calculated. Then, the playlist selection support apparatus 100 generates a playlist selection screen that displays the genre ratio calculated for each playlist as a horizontal bar graph, and displays the generated playlist selection screen on a display (not shown). To control. Then, the vehicle head unit 720 acquires music data of the music belonging to the playlist selected by the user from the music playback device 700 and plays back the acquired music data under the control of the playback control unit 740.

  In addition, each of the embodiments is merely an example of the embodiment for carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

100 playlist selection support device (content list selection support device)
260 Operation reception unit (content attribute selection reception unit)
280 Number-of-songs calculation unit (contents number calculation unit)
300 Genre ratio calculation unit (content attribute ratio calculation unit)
320 Playlist selection screen generation unit (display control unit)
340 Playlist selection screen display control unit (display control unit)
360 Scan playback controller

Claims (4)

Based on the content list information that associates the content list name that is the name of the content list, the content name that is the name of the content registered in the content list, and the content attribute that is the attribute of the content, the content attribute A content number calculation unit for calculating the number of contents for each;
A content attribute ratio calculation unit that calculates, as a content attribute ratio, a ratio of the number of contents for each content attribute with respect to the total number of contents registered in the content list, based on a calculation result of the content number calculation unit; ,
A content list selection support apparatus comprising: a display control unit configured to control the content attribute ratio calculated by the content attribute ratio calculation unit so as to display a graph. The content list selection support device according to claim 1,
A content attribute selection receiving unit that receives selection of any content attribute from a plurality of existing content attributes;
The display control unit includes a plurality of content attributes in the order in which the ratio of the number of content attributes received by the content attribute selection receiving unit is high based on the content attribute ratio calculated by the content attribute ratio calculating unit. A content list selection support device, wherein the content attribute ratio corresponding to each of the existing content lists is controlled to be displayed in a graph. The content list selection support device according to claim 1,
A content attribute selection accepting unit that accepts selection of any content attribute in any content list from among a plurality of existing content lists;
A content further comprising: a scan reproduction control unit that performs control so as to perform scan reproduction for sequentially reproducing the top portion of each content having the content attribute received by the content attribute selection reception unit. List selection support device. Based on the content list information that associates the content list name that is the name of the content list, the content name that is the name of the content registered in the content list, and the content attribute that is the attribute of the content, the content attribute A first step of calculating the number of contents for each;
A second step of calculating, as a content attribute ratio, a ratio of the number of contents for each content attribute with respect to the total number of contents registered in the content list, based on the calculation result in the first step;
And a third step of controlling the content attribute ratio calculated in the second step to be displayed in a graph.

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