JP2012173695A - Playback controller and playback control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a playback controller and a playback control method for enabling a user to keep on listening to music contents similar to music contents the user was listening before without complication even when sound based on music contents distributed by a music content distribution server cannot be output due to deterioration of reception conditions.SOLUTION: When a reception level in a portable terminal 140 of a music content to be distributed by a music content distribution server 120 of an Internet radio is below prescribed value, a music content attached with attribution information included in radio station information set so as to receive distribution of the music content is taken out of a music content storage part 520 and played back, so that a music content having the attribution information same as that of the music content to be distributed is automatically played back without the user being bothered to look for a similar music content from a music source different from the Internet radio and performing operation to play it back.

Description

  The present invention relates to a reproduction control apparatus and a reproduction control method, and is particularly suitable for use in a reproduction control apparatus that controls to reproduce music content distributed from a music content distribution server of an Internet radio.

  In recent years, Internet radio services that distribute music content in a streaming manner via the Internet have become widespread. There are two types of Internet radio: an on-demand system and a live system. The on-demand method is a method in which music content is recorded in advance and can be distributed at any time according to a user request. The live method is a method of generating music content in real time and distributing it to the user.

  Recently, a new service called “music discovery engine” has been provided as one of on-demand Internet radio. With this new service, you can create user-specific radio stations. The radio station is created by the user specifying attribute information such as favorite genre, artist name, song title name, composer name, and the like. When a radio station is created, music contents related to attribute information and music contents similar in rhythm and sound are streamed through the Internet.

  When this type of Internet radio service is used on a portable terminal, the user inputs attribute information such as a genre, artist name, song title name, or composer name related to the song to be listened to the portable terminal. Then, the mobile terminal creates a user-dedicated radio station based on the attribute information. And a portable terminal transmits the attribute information of the produced radio station to a music content delivery server via the internet.

  The music content distribution server extracts music content similar in rhythm and sound to the music content associated with the attribute information transmitted from the mobile terminal, and sequentially transmits the music content to the mobile terminal. The portable terminal reproduces the music content sequentially transmitted from the music content distribution server and outputs the sound. By using such an Internet radio service, users can listen to many music contents with their own favorite rhythms and sounds, and the pleasure of meeting their favorite music contents that they have never heard before. Can be enjoyed.

  Currently, there is a user's desire to listen to the sound based on the music content distributed from the music content distribution server to the mobile terminal even in the car. In view of this, it has been studied to link the mobile terminal and the in-vehicle device to output sound based on the music content distributed to the mobile terminal from the in-vehicle device.

  However, when the mobile terminal is mounted on the vehicle in order to output sound based on the music content distributed to the mobile terminal from the in-vehicle device, the reception status of the music content distributed from the music content distribution server on the mobile terminal is Changes with movement. Therefore, when the vehicle is moving in a place where the reception status is not good, it is impossible to output sound based on the music content distributed from the music content distribution server from the in-vehicle device.

  In that case, the user often views the music content by switching to another music source such as a CD (Compact Disc) or a DVD (Digital Versatile Disc). However, in that case, the user has to manually switch to another music source. It is not only very troublesome for the user to switch the music source while driving, but also a serious problem in terms of safe driving.

  On the other hand, as a music source switching technique, a technique for automatically switching to another information source (for example, a navigation device) when a broadcast signal (TV or radio) cannot be satisfactorily received in a weak electric field region or the like is proposed. (For example, refer to Patent Document 1). Also, a technique has been proposed in which the television reception state is monitored, and when the reception state deteriorates beyond a specific level, the television sound is switched to the sound of a radio broadcasting the same broadcast content (for example, , See Patent Document 2).

JP 2000-261733 A JP 2000-106657 A

  However, when listening to audio based on music content distributed from a music content distribution server equipped with a “music discovery engine”, if the reception state deteriorates and music content cannot be received, There is a case where it is desired to continue listening to music content similar to the music content that was being listened to. In this case, there is a problem that the user needs to perform an operation of finding and playing back similar music content.

  In the above-mentioned patent document 1, there is a reference to automatically switching the music source to the navigation device when the reception situation deteriorates, but the music content is switched to a music content similar to the music content that has been listened to so far. There is no mention of regeneration. That is, the technique described in Patent Document 1 cannot solve the above problem.

  Further, in Patent Document 2 described above, there is a reference to automatically switching the sound of a television to the sound of a radio broadcasting the same broadcast content when the reception situation deteriorates. However, this switching process is premised on the good reception status of the radio that is the switching destination. Therefore, when the radio reception status is bad, switching cannot be performed in the first place. That is, in the technique described in Patent Document 2, it is determined whether or not the music source can be switched depending on the reception status of the switching destination, and the above problem in a place where the reception status is not good cannot be solved reliably.

  The present invention has been made to solve such a problem, and even if the sound based on the music content distributed from the music content distribution server cannot be output due to the deterioration of the reception situation, the user is troublesome. The object is to continue listening to music content similar to the music content that has been listened to.

  In order to solve the above-described problem, in the playback control device of the present invention, when the reception level of the music content distributed from the Internet radio music content distribution server to the receiving device is less than a predetermined value, The music content accompanied by the same attribute information as the attribute information related to the music content distributed from the distribution server is taken out from the recording medium accessible from the reproduction control device and reproduced.

  According to the present invention configured as described above, when the reception level of the music content deteriorates, the user can search for and reproduce similar music content from a music source different from the Internet radio without having to bother to perform the operation. A music content whose attribute information matches that of the music content distributed from the content distribution server is automatically searched for and reproduced from a music source different from the Internet radio. There is a high possibility that music contents having matching attribute information are similar to each other. Therefore, even when the sound based on the music content distributed from the music content distribution server cannot be output due to the deterioration of the reception status, the user can continue to listen to the music content similar to the music content that has been listened to without trouble. Can do.

It is a block diagram which shows the structural example of the music content delivery system provided with the reproduction | regeneration control apparatus of this invention in the vehicle-mounted apparatus. It is a flowchart which shows the reproduction | regeneration control operation example of the music content by this embodiment.

  Hereinafter, an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a music content distribution system 100 provided with the in-vehicle device 160 having the playback control device of the present invention. As shown in FIG. 1, the music content distribution system 100 includes a music content distribution server 120, a mobile terminal 140 (corresponding to a receiving device in claims), and an in-vehicle device 160. Among these, the music content distribution server 120 is installed in a music content distribution center, for example. For example, the mobile terminal 140 and the in-vehicle device 160 are installed in a vehicle driven by a user. The music content distribution server 120, the portable terminal 140, and the in-vehicle device 160 are connected by a wired or wireless communication line.

  First, the functional configuration of the music content distribution server 120 will be described. As shown in FIG. 1, the music content distribution server 120 includes a music content storage unit 200, a designated radio station information reception unit 220, a music content specification unit 240, and a music content transmission unit 260.

  The music content storage unit 200 stores a plurality of music contents. Each piece of music content is accompanied by attribute information such as an artist name, album name, music title name, and composer name. Each piece of music content is associated with musical feature information indicating its musical features (for example, rhythm and sound). The musical feature information is generated by the music content distributor who manages the music content distribution server 120 analyzing each music content.

  The designated radio station information receiving unit 220 receives the designated radio station information transmitted from the mobile terminal 140. Then, the designated radio station information receiving unit 220 outputs the received designated radio station information to the music content specifying unit 240. The designated radio station information is information indicating a radio station designated by the user in the in-vehicle device 160 (details will be described later).

  When the designated radio station information is output from the designated radio station information receiving unit 220, the song content specifying unit 240 refers to the song content storage unit 200, and attribute information (artist name, album name) included in the designated radio station information. , Music title name, composer name, etc.) as one piece of attribute information, one piece of music content is extracted at random. Then, the music content specifying unit 240 specifies a music content having a musical feature having a high degree of similarity with the musical feature information of the extracted music content as a distribution target for the mobile terminal 140.

  In addition, the music content specifying unit 240 extracts the music content specified as the next distribution target from the music content storage unit 200 and outputs it to the music content transmission unit 260. The music content transmitting unit 260 transmits the music content output from the music content specifying unit 240 to the portable terminal 140 together with the attribute information.

  Next, the functional configuration of the mobile terminal 140 will be described. As shown in FIG. 1, the mobile terminal 140 includes a radio station generation unit 300, a radio station information storage unit 320, a radio station information transmission unit 340, a designated radio station information reception unit 360, a designated radio station information transmission unit 380, a music content. The receiver 400 includes a receiver 400, a music content transmitter 420, a reception level detector 440, and a reception level information transmitter 460. Each functional block 300 to 460 of the mobile terminal 140 is realized by an application program installed in the mobile terminal 140.

  The radio station generation unit 300 generates a radio station for receiving distribution of music content from the music content distribution server 120 by a user input operation to an operation unit (not shown, the same applies hereinafter). Specifically, the radio station generation unit 300 is a radio that allows the application program of the mobile terminal 140 to recognize information including attribute information (artist name, album name, song title name, composer name, etc.) input by the user. Generate as station information. Then, the radio station generation unit 300 stores the generated radio station information in the radio station information storage unit 320.

  When receiving a transmission request for radio station information from the in-vehicle device 160, the radio station information transmission unit 340 transmits the radio station information stored in the radio station information storage unit 320 to the in-vehicle device 160. If there are a plurality of pieces of radio station information stored in the radio station information storage unit 320, the radio station information transmission unit 340 transmits the plurality of pieces of radio station information to the in-vehicle device 160. In this case, in the in-vehicle device 160, one of a plurality of pieces of radio station information transmitted from the radio station information transmission unit 340 is designated by the user.

  The designated radio station information receiving unit 360 receives the designated radio station information transmitted from the in-vehicle device 160. Then, the designated radio station information receiving unit 360 outputs the received designated radio station information to the designated radio station information transmitting unit 380. The designated radio station information transmission unit 380 transmits the designated radio station information output from the designated radio station information reception unit 360 to the designated radio station information reception unit 220 of the music content distribution server 120. Then, as described above, the music content corresponding to the designated radio station information is distributed from the music content distribution server 120 to the portable terminal 140.

  The music content receiving unit 400 receives the music content and attribute information transmitted from the music content transmitting unit 260 of the music content distribution server 120. Then, the music content receiving unit 400 outputs the received music content and attribute information to the music content transmitting unit 420. The music content transmitting unit 420 transmits the music content and attribute information output from the music content receiving unit 400 to the in-vehicle device 160.

  The reception level detection unit 440 detects the reception level at the mobile terminal 140 of the music content distributed from the music content distribution server 120 by the music content reception unit 400 at regular intervals. The reception level information transmission unit 460 transmits reception level information indicating the detected reception level to the in-vehicle device 160 every time the reception level detection unit 440 detects the reception level.

  Finally, the functional configuration of the in-vehicle device 160 will be described. As shown in FIG. 1, the in-vehicle device 160 includes an operation receiving unit 500, a music content storage unit 520 (corresponding to a recording medium in claims), a playback control unit 540, a radio station information receiving unit 560, a display control unit. 580, a designated radio station information transmission unit 600, a music content reception unit 620, a reception determination unit 640, an attribute determination unit 660, and an attribute information storage unit 680.

  The operation reception unit 500 receives an operation for requesting reproduction of desired music content via an operation unit (not shown, the same applies hereinafter). Then, the operation reception unit 500 outputs a music content playback request to the playback control unit 540. In addition, the operation reception unit 500 receives an operation requesting to display radio station information via the operation unit. Then, the operation reception unit 500 outputs a radio station information display request to the radio station information reception unit 560. Further, the operation reception unit 500 receives an operation for designating any radio station information from the radio station information displayed by the display control unit 580 via the operation unit. Then, the operation reception unit 500 notifies the designated radio station information transmission unit 600 of the designated radio station information.

  The music content storage unit 520 is a recording medium such as a hard disk built in the in-vehicle device 160 and stores a plurality of music contents. Each piece of music content is accompanied by attribute information including an artist name, album name, song title name, composer name, etc. (corresponding to the first attribute information of the present invention, hereinafter referred to as “first attribute information”). is doing. In the present embodiment, the first attribute information is searched by accessing a CDDB (Compact Disc DataBase) (not shown) held in the in-vehicle device 160 using, for example, TOC (Table of Contents) information of each music content as a key. Information. The CDDB is a database for providing information (music title name, artist name, album name, genre, etc.) of music recorded on various music CDs and music DVDs.

  When a reproduction request for a desired music content is output from the operation reception unit 500, the reproduction control unit 540 performs control so that the music content related to the reproduction request is extracted from the music content storage unit 520 and reproduced. In addition, when the music content is output from the music content receiving unit 620, the playback control unit 540 controls to play the music content.

  Further, when the first attribute information is output from the attribute determination unit 660, the playback control unit 540 retrieves the music content accompanied by the first attribute information from the music content storage unit 520 and plays it back. Control. When there are a plurality of music contents accompanied with the first attribute information, the reproduction control unit 540 reproduces the plurality of music contents in a random order, for example. However, it is preferable not to repeat the music content that has been played once.

  Radio station information receiving section 560 requests radio station information transmitting section 340 of portable terminal 140 to transmit radio station information when a display request for radio station information is output from operation accepting section 500. Radio station information receiving section 560 receives the radio station information transmitted from radio station information transmitting section 340 in response to the transmission request for radio station information.

  The radio station information receiving unit 560 holds the received radio station information in an internal buffer memory (not shown, the same applies hereinafter). Then, the radio station information receiving unit 560 outputs the radio station information held in the buffer memory to the display control unit 580. The display control unit 580 controls the radio station information output from the buffer memory to be displayed on a display (not shown, the same applies hereinafter).

  Further, the display control unit 580 controls the attribute information output from the music content receiving unit 620 to be displayed on the display when the corresponding music data is played back by the playback control unit 540. As a result, the user who sees the display can easily grasp the artist name, the song title name, and the like of the song data currently being listened to.

  When the radio station information is notified from the operation reception unit 500, the designated radio station information transmission unit 600 acquires the notified radio station information from the buffer memory of the radio station information reception unit 560, and the acquired radio station information is displayed. The designated radio station information is transmitted to the designated radio station information receiving unit 360 of the mobile terminal 140. Then, as described above, the music content corresponding to the designated radio station information transmitted from the designated radio station information transmission unit 600 is sent from the music content distribution server 120 to the in-vehicle device 160 via the portable terminal 140.

  Further, when the radio station information is notified from the operation reception unit 500, the designated radio station information transmission unit 600 receives attribute information (in the present invention) included in the designated radio station information acquired from the buffer memory of the radio station information reception unit 560. The attribute information storage unit 680 stores the second attribute information (hereinafter referred to as “second attribute information”).

  The music content receiving unit 620 receives the music content and attribute information transmitted from the music content transmitting unit 420 of the mobile terminal 140. Then, the music content receiving unit 620 outputs the received music content to the reproduction control unit 540 and outputs the received attribute information to the display control unit 580.

  The reception determination unit 640 receives the reception level information transmitted from the reception level information transmission unit 460 of the mobile terminal 140. Then, the reception determination unit 640 determines whether or not the reception level indicated by the received reception level information is longer than a predetermined time and less than a predetermined value. If it is determined that the reception level is continuously lower than the predetermined value for a predetermined time or longer, the reception determination unit 640 notifies the attribute determination unit 660 to that effect. On the other hand, when it is determined that the reception level is not less than the predetermined value for a predetermined time or longer, the reception determination unit 640 notifies the attribute determination unit 660 nothing.

  When the attribute determination unit 660 receives a notification from the reception determination unit 640 that the reception level continues for a predetermined time or longer and is less than the predetermined value, the attribute determination unit 660 receives the second attribute information (for example, artist name) from the attribute information storage unit 680. Take out. Then, the attribute determination unit 660 stores the same attribute information as the second attribute information extracted from the attribute information storage unit 680 (included in the designated radio station information) in the music content storage unit 520 as the first attribute information. It is determined whether or not.

  If it is determined that the same first attribute information as the second attribute information included in the designated radio station information is stored in the music content storage unit 520, the attribute determination unit 660 displays the first attribute information. The data is output to the reproduction control unit 540. In this case, as described above, the playback control unit 540 retrieves the music content accompanied with the first attribute information from the music content storage unit 520 and plays it. For example, when the second attribute information stored in the attribute information storage unit 680 is a desired artist name, the music content having the artist name as the first attribute information is received from the music content storage unit 520. The playback control unit 540 takes it out and plays it back. On the other hand, when it is determined that the same first attribute information as the second attribute information is not stored in the music content storage unit 520, the attribute determination unit 660 outputs nothing to the reproduction control unit 540.

  Next, the music content reproduction control operation according to the present embodiment will be described. FIG. 2 is a flowchart showing an example of the music content reproduction control operation according to this embodiment. In the flowchart shown in FIG. 2, the first music content corresponding to the designated radio station information transmitted from the designated radio station information transmission unit 600 is sent from the music content distribution server 120 to the in-vehicle device 160 via the portable terminal 140. Start by picking up. Note that the designated radio station information transmission unit 600 has already stored the second attribute information included in the designated radio station information acquired from the buffer memory of the radio station information reception unit 560 in the attribute information storage unit 680. .

  First, the reception determination unit 640 determines whether or not the reception level indicated by the reception level information received from the reception level information transmission unit 460 of the mobile terminal 140 is longer than a predetermined time and less than a predetermined value (step S100). If reception determination unit 640 determines that the reception level is not less than the predetermined value for a predetermined time or longer (the reception status has not deteriorated) (NO in step S100), reproduction control unit 540 receives the music content. Control is performed to reproduce the music content output from the unit 620 (music content distributed from the music content distribution server 120) (step S120). Thereafter, the process proceeds to step S100.

  On the other hand, when reception determination unit 640 determines that the reception level is less than the predetermined value for a predetermined time or longer (the reception status has deteriorated) (YES in step S100), reception determination unit 640 indicates that Is sent to the attribute determination unit 660. Next, the attribute determination unit 660 receives a notification from the reception determination unit 640 that the reception level is less than the predetermined value for a predetermined time or more, and receives second attribute information (for example, artist name) from the attribute information storage unit 680. ) Is taken out (step S140).

  Next, the attribute determination unit 660 stores the same attribute information as the second attribute information (included in the designated radio station information) extracted from the attribute information storage unit 680 in the music content storage unit 520 as the first attribute information. It is determined whether or not it has been performed (step S160). If the attribute determination unit 660 determines that the same first attribute information as the second attribute information is not stored in the music content storage unit 520 (NO in step S160), the process transitions to step S100. .

  On the other hand, when the attribute determination unit 660 determines that the same first attribute information as the second attribute information is stored in the music content storage unit 520 (YES in step S160), the attribute determination unit 660 The first attribute information is output to the reproduction control unit 540.

  Finally, the reproduction control unit 540 performs control so that the music content accompanied by the first attribute information output from the attribute determination unit 660 is extracted from the music content storage unit 520 and reproduced (step S180). After the process of step S180 is completed (reproduction of music content has been completed to the end), the process transitions to step S100.

  When the music content accompanied by the first attribute information output from the attribute determination unit 660 is being played back, if the reception level continues to be higher than a predetermined value for a predetermined time or longer, playback is performed. The control unit 540 may immediately stop the reproduction of the music content and reproduce the music content output from the music content reception unit 620.

  As described above in detail, in this embodiment, when the reception level at the portable terminal 140 of the music content distributed from the music content distribution server 120 of the Internet radio is less than a predetermined value for a predetermined time or longer, the music content distribution server The music content with the same attribute information as the attribute information included in the radio station information set to receive the distribution of the music content from 120 is extracted from the music content storage unit 520 and played back.

  According to the present embodiment configured as described above, when the reception level of the music content deteriorates, the user can search for the music content similar to the music source different from the Internet radio and perform the operation to play it back. A music content whose attribute information matches that of the music content distributed from the content distribution server 120 is automatically searched for and reproduced from a music source different from the Internet radio. There is a high possibility that music contents having matching attribute information are similar to each other. Therefore, even when the sound based on the music content distributed from the music content distribution server 120 cannot be output due to the deterioration of the reception status, the user continues to listen to the music content similar to the music content that has been listened to without any trouble. be able to.

  In the above embodiment, an example in which the second attribute information is attribute information included in the designated radio station information (that is, attribute information set by the user to receive distribution of music content from the music content distribution server 120). However, the present invention is not limited to this. For example, the second attribute information may be attribute information (for example, artist name) attached to the music content most recently distributed from the music content distribution server 120. Immediately before the reception state deteriorates, the music content distribution server 120 may distribute music content similar in rhythm and sound, although the attribute information (artist name) included in the designated radio station information is different from the artist name. . At this time, the in-vehicle device 160 reproduces music content accompanied by attribute information (for example, artist B) different from the attribute information (for example, artist A) included in the designated radio station information. Therefore, the user can continue to listen to similar music content based on the music content that was recently listened to when the reception state deteriorated, and the music content to be reproduced is distributed from the music content distribution server 120 It is possible to prevent the user from feeling uncomfortable with being lost.

  Further, in the above embodiment, the music content distribution server 120 distributes the music content with attribute information that matches the attribute information included in the designated radio station information, when the music content is not stored in the music content storage unit 520. Alternatively, the music content with attribute information that matches the attribute information accompanying the music content may be extracted from the music content storage unit 520 and played back. In this way, when the reception level deteriorates while listening to a certain music content, the possibility that the similar music content can be found from the music content storage unit 520 and reproduced is increased, and the music content that has been listened to until now is increased. This is convenient for a user who wants to continue listening to music content similar to.

  Moreover, although the said embodiment demonstrated the example in which the portable terminal 140 and the vehicle equipment 160 were separated, this invention is not limited to this. For example, the function of the mobile terminal 140 may be built in the in-vehicle device 160.

  Moreover, although the said embodiment demonstrated the example with which the music content memory | storage part 520 is provided in the vehicle-mounted apparatus 160, this invention is not limited to this. For example, the music content storage unit 520 may be provided in the mobile terminal 140.

  Moreover, although the said embodiment demonstrated the example with which the attribute information storage part 680 is provided in the vehicle-mounted apparatus 160, this invention is not limited to this. For example, the attribute information storage unit 680 may be provided in the mobile terminal 140.

  Moreover, although the said embodiment demonstrated the example which searches and reproduces | regenerates the music content with the same artist name as similar music content, this invention is not limited to this. For example, music contents having the same album name, genre, composer name, etc. may be found and reproduced as similar music contents. In this case, while the reception state is getting worse, every time one piece of playback is finished, second attribute information that differs in order of artist name, genre, album name, composer name is extracted from the attribute information storage unit 680, for example. Thus, it may be determined whether the same first attribute information as the second attribute information is stored. In this way, the user can listen not only to music content with the same artist name but also music content with the same genre, album name, and composer name, and music similar to the music content that has been listened to so far. Can listen to a wide range of content.

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

120 Music content distribution server 140 Mobile terminal (receiving device)
160 On-vehicle device (reproduction control device)
520 Music content storage unit (recording medium)
540 Playback control unit 640 Reception determination unit 660 Attribute determination unit

Claims (4)

A playback control device that controls to play music content distributed from a music content distribution server of an Internet radio to a receiving device,
A reception determination unit that determines whether or not a reception level of the music content distributed from the music content distribution server in the receiving device is less than a predetermined value;
First attribute information associated with music content recorded on a recording medium accessible from the reproduction control device when the reception determination unit determines that the reception level is less than a predetermined value And an attribute determination unit that determines whether or not the second attribute information related to the distributed music content matches.
And a reproduction control unit that controls to extract and reproduce the music content accompanied by the first attribute information from the recording medium when it is determined by the attribute determination unit to match. A playback control device. The playback control device according to claim 1,
The reproduction control apparatus according to claim 2, wherein the second attribute information is attribute information set by a user as information necessary for receiving distribution of the music content from the music content distribution server. The playback control device according to claim 1,
The reproduction control apparatus according to claim 2, wherein the second attribute information is attribute information accompanying the music content distributed from the music content distribution server. A playback control method in a playback control device for controlling to play music content distributed from a music content distribution server of an Internet radio to a receiving device,
A first step of determining whether or not the reception level of the music content distributed from the music content distribution server at the reception device is less than a predetermined value by the reception determination unit of the reproduction control device;
Music recorded on a recording medium accessible from the reproduction control device when the attribute determination unit of the reproduction control device determines that the reception level is less than a predetermined value in the first step A second step of determining whether or not the first attribute information attached to the content matches the second attribute information related to the music content distributed from the music content distribution server;
When it is determined that the reproduction control unit of the reproduction control device matches in the second step, the reproduction control unit performs control so that the music content accompanied by the first attribute information is extracted from the recording medium and reproduced. A reproduction control method comprising: a third step.

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