JPH09160578A - Music playback system and music playback device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the amount of information usable for an entire system, while reducing the amount of information which music playback devices store individually. SOLUTION: A CPU 4, at the input of a request via a remote control 12, judges whether or not the karaoke data for the music requested is present within a hard disk 6 in its karaoke device 1. If the data does not exist, a corresponding table in the hard disk 6 is consulted to acquire the phone number of another karaoke device 1 which holds the karaoke data for that music. Then, a connection to this karaoke device 1 is made and the karaoke data transmitted therefrom is received and stored in an internal memory.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music reproducing system in which a plurality of music reproducing devices for performing performance processing using music performance information are mutually connected by communication means, and music reproducing effective for the system. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, for example, in a karaoke apparatus, karaoke data as music performance information is stored in a storage means such as a hard disk, and karaoke performance processing is performed using the stored karaoke data. Therefore, the karaoke songs that can be played on the karaoke playing device are:
It depends on the stored karaoke data.

[0003]

However, the storage capacity of the storage means such as a hard disk is finite, and in a recent situation in which there is a strong demand from the user to increase the number of songs that can be played, the required amount of information is limited. The capacity of the storage means is exceeded, and the user is disadvantageous in purchasing a new model having a storage means for expansion or a storage means having a large storage capacity. Further, in order to avoid this problem, it is conceivable to install a storage means having a sufficiently large capacity in advance, but if such a method is adopted, it will cause a rise in the price of the device.

Further, in the future, it is fully conceivable that the cost of a storage means having a larger capacity will be relatively lowered due to the advancement of the technical level. However, a new storage means having such a large capacity is installed. Even if a model is put into the system, if an old model with a relatively small capacity still exists in the system,
It may be possible that the functions of the new model cannot be fully utilized because the service that considers the old model must be performed.

The present invention has been made to solve the above-mentioned problems, and proposes a music reproducing system in which a plurality of music reproducing devices are mutually connected by communication means,
An object of the present invention is to increase the amount of information that can be used by the entire system while reducing the amount of information that each music playback device stores individually.

[0006]

In order to achieve this object, the invention as set forth in claim 1 is to store at least performance sound by using storage means for storing music performance information, and using the music performance information. Is a music reproduction system in which a plurality of music reproduction devices each including a music performance means for performing the performance processing are connected to each other by a communication means, and each music reproduction device in the system is a performance by the music performance means. If the music performance information necessary for processing is not stored in the storage means, the necessary music performance information is acquired from another music reproducing device via the communication means and stored in the temporary storage means. The music reproduction system is characterized in that the performance processing can be executed using the music performance information.

In this music reproducing system, a plurality of music reproducing devices are mutually connected by communication means. Each music reproducing device in the system has a music playing means,
A performance process for outputting at least a performance sound is performed using the music performance information stored in the storage means. If the music performance information necessary for performance processing by the music performance means is not stored in the storage means, the necessary music performance information is acquired from another music reproduction device via the communication means. It is stored in the temporary storage means and the performance processing is executed using the music performance information.

By doing so, it is possible to reduce the amount of music performance information stored in the storage means of each music reproducing device. For example, considering the case where it is used as a karaoke device, even if it is possible to play 10,000 karaoke songs, for example, it is possible if each of the 10 music playback devices stores 1,000 songs for storage. Is. In other words, 1000 stored in its own storage means
When a song is requested, the song is played using it, and in other cases, the song playing information is obtained from another music playback device and played, so that one unit can store all 10,000 songs. In comparison with the above case, the amount of memory required is one tenth.

It is necessary for each music reproducing device to store which music reproducing device in the system stores which music performance information. For example, in the case of a karaoke piece, it is possible to distribute the pieces to 10 devices by the numbers at the end. Also, when acquiring, it is necessary to communicate with the music playback device, so when communicating using a public telephone line, the telephone number of each music playback device must also be stored in correspondence. Is preferred.

Further, when the data is distributed and stored in the entire system as described above, it is conceivable to set it as in claim 2. That is, the music performance information that can be processed by any of the music reproducing devices in the system is duplicately stored for each music in the storage means of at least two music reproducing devices. . This means that if only one music playback device is stored for each song,
If the music playback device becomes unusable due to a failure or communication itself becomes impossible, the music performance information that the music playback device was in charge of cannot be used by any other music playback device. This is because it is not preferable in terms of system reliability. Therefore, by storing the music performance information in duplicate, if the first music playback device that is accessed is out of order or cannot communicate, another music playback device is accessed to play the desired music. Information can be obtained and reliability is improved.

According to another aspect of the music reproducing system of the present invention, each music reproducing device stores a piece of music performance information that can be processed by any music reproducing device in the system. Connected by communication means,
If the necessary music playing information is not stored in the storage means and cannot be obtained from another music reproducing device, the necessary music playing information is acquired from the host device. There is.

In the above-mentioned claim 2, it has been described that it is preferable to duplicately store the music performance information in order to improve reliability. However, even if two music reproducing devices store one song, if both of them fail, the music cannot be played. Therefore, by incorporating in the system a host device that stores all music performance information, a further fail-safe function is exhibited and reliability is further improved.

[0013] It should be noted that there is an idea that the music performance information that is not in the music reproducing device of its own may be acquired from the host device from the beginning, but if this is done, all music reproducing devices in the system are concentrated. There is a risk that some music playback devices cannot be obtained immediately by accessing the host device. In addition, the communication load on the host device is usually larger than the communication load between terminals such as music reproducing devices. For example, communication costs may increase due to long-distance communication and the use of high-speed communication networks.

Therefore, it can be said that it is preferable in terms of system operation that the desired music performance information is first acquired between the music reproducing devices, and if the desired music performance information is not acquired, it is first acquired from the host device. Further, the information acquired from another music reproducing device may be a program instead of the music performance information as described above. For example, in the music reproducing system according to claim 4, the music reproducing device further comprises a program storing means for storing a program for executing at least a predetermined type of processing including the performance processing by the music playing means, When performing processing other than the performance processing by the music playing means, if the program for the processing is not owned internally, the necessary program is transmitted from another music reproducing device via the communication means. The program is configured to be acquired and stored in the temporary storage means, and a predetermined process can be executed using the program.

Therefore, when executing a process other than the performance process by the music playing means, if the program for the process is not owned internally, the necessary program is acquired from another music reproducing device. Execute a predetermined process. The reason for excluding the program for performance processing by the music performance means is as follows. That is, this performance process is executed as a main process in each music reproducing device. Therefore, theoretically, it is possible to obtain it from another music playback device only when necessary, but it is necessary to always store it in the temporary storage means during the performance processing. If so,
This is because it is more realistic for each music playback device to always have one.

As a program obtained from another music reproducing device, for example, a new music piece is distributed from the host device, a log is transmitted to the host device, or a charging process is executed. A processing program is possible. The distribution of new songs, the transmission of logs, and the billing process may be executed during a period when the performance process, which is the main process, is not executed. In particular, the billing process is performed once a month. Execution is enough. Therefore, unlike the above-described program for performance processing, the necessity that each music reproducing device always has is extremely rare, and it is sufficient to obtain it from another when necessary. Further, for example, when the program cannot be acquired from another in order to execute the billing process, for example, after 1 hour or 12 hours,
Or even if you try again the next day, it does not lose the meaning of the billing process itself, so in that respect, like the performance process, you can not respond to the request from the user unless you can get it from others. It is different from the one that suffers fatal damage.

On the other hand, the following are examples of music reproducing devices effective for use in such a system.
For example, a fifth aspect of the present invention comprises a storage means for storing music performance information and a music performance means for performing a performance process for outputting at least a performance sound by using the music performance information, and separate by communication means. A music reproducing device interconnected with the music reproducing device described above, if the music playing information necessary for the performance processing by the music playing means is not stored in the storage means, Information is acquired from another music reproducing device via the communication means, stored in the temporary storage means, and the performance processing can be executed using the music performance information.

According to a sixth aspect of the present invention, in the music reproducing apparatus according to the fifth aspect, all pieces of music performance information that can be processed by one of the other music reproducing apparatuses connected to each other are stored. If it is not possible to obtain from another music playback device because the music playing information required for performance processing is not stored in the storage device, it is necessary to connect to the host device It is characterized in that it is configured to obtain various pieces of music performance information from the host device.

According to a seventh aspect of the present invention, in the music reproducing apparatus according to the fifth or sixth aspect, a program for executing at least a predetermined type of processing including performance processing by the music performance means is stored. When executing a process other than the performance process by the music performance unit, if a program for the process is not internally owned, the necessary program is stored in the communication unit. It is configured such that it can be acquired from another music reproducing device via the, and stored in the temporary storage means, and a predetermined process can be executed using the program.

Also in these music reproducing devices, the same actions and effects as the music reproducing devices in the above-described music reproducing system are exhibited.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration when the music reproducing system of the present invention is applied as a karaoke system. In the karaoke system of the present embodiment, a plurality of karaoke devices 1 as music reproducing devices are connected to each other via a public telephone line 20 as a communication means. Further, each karaoke device 1 is connected to a host computer 30 as a host device via a public telephone line 20 as a communication means.
The communication means is not limited to the public telephone line, and may be a dedicated communication network.

Next, the configuration of the karaoke apparatus 1 is shown in FIG.
This will be described with reference to FIG. The karaoke device 1 operates according to a command from a CPU 4 as a control means for controlling the entire device. The CPU 4 has a modem 2 as a communication means for communicating with the host computer 30 and karaoke data as music performance information. A hard disk 6 as a storage means for storing data, a remote control light receiving section 3 for receiving a signal emitted from a remote control 12 used when a user operates a karaoke apparatus for selecting songs, and a song number input by the remote control 12. Are displayed to notify the user of the input status, a reproducing device 5 for converting the performance data of the karaoke data into an audio signal and outputting it to the amplifier 13, and a reference when the user sings. A video mixer 8 for synthesizing a background image and lyrics, and outputting a video signal is connected.

The microphone 1 used when the user sings
By connecting 5 to the karaoke device 1, the input audio signal is combined with the audio signal output from the playback device 5 and output to the amplifier 13. The amplifier 13 amplifies the synthesized voice signal and outputs it to the connected speaker 14. Further, at the time of playing a song, the CPU 4 displays the lyrics telop information included in the karaoke data on the display 11 via the video mixer 8 together with the background image output from the moving image reproduction player 10 in synchronization with the performance.

The CPU 4, the reproducing device 5, and the amplifier 13
"Song playing means" according to the present invention, including the video mixer 8 and the display 11 as the basis, and the speaker 14 as a base.
Is equivalent to Here, the karaoke data stored in the hard disk 6 will be described. The karaoke data stored in the hard disk 6 is not common to each karaoke device 1, but a part of all karaoke data is shared and stored for each karaoke device 1. In this embodiment, the person in charge is determined by the number at the end of the song number. FIG. 3 is a correspondence table showing the relationship between the ending number of the music number in charge and the telephone number for each piece of identification information (referred to as a device ID) of the karaoke device 1. This is stored in the internal memory of the CPU 4 of each karaoke device.

In the example shown in FIG. 3, the assigned end number is "1, 2, 3" for the device ID "1" and the device ID is "1".
For "2", the last number in charge is "2, 3,
4 ”, the assigned end number is“ 3,4,5 ”for the device ID“ 3 ”, and the assigned end number is“ 4,5,6 ”for the device ID“ 4 ”. For the ID “5”, the assigned tail number is “5, 6, 7” and the device ID is “6”.
For the device with the device ID "7", the assigned end number is "6, 7, 8".
9 ", the assigned end number is" 8, 9, 0 "for the device ID" 8 ", and the assigned end number is" 9, 0, 1 "for the device ID" 9 ". The assigned tail number is set to "0, 1, 2" for the ID "10". As a result, for example, the karaoke device 1 having the assigned end number "3" has the device ID "1, 2, 3".
3, the karaoke device 1 in which the assigned tail number “4” is set has three device IDs of 2, 3, and 4, and the karaoke data is stored in three karaoke devices 1 per song. It will be.

On the other hand, the host computer 30 to which each karaoke apparatus 1 is connected has an internal database for storing and managing karaoke data, and in response to a request from the karaoke apparatus 1, the karaoke data is taken out from the database and karaoke is performed. It can be delivered to the device 1. This database stores all the karaoke data stored in the hard disk 6 of one of the karaoke apparatuses 1 in the system. That is, to explain with reference to FIG. 3, all the karaoke data whose ending numbers are 0 to 9 are stored.

Next, the operation of the karaoke machine 1 will be described. FIG. 4 is a flowchart showing a process related to karaoke performance. First, in the first step S10, it is determined whether or not there is a request. Then, when requested, the process proceeds to S20, and it is first determined whether or not there is karaoke data of the requested song in the self, that is, in the hard disk 6.
This may be determined by referring to the correspondence table shown in FIG. 3 and checking whether or not the end number in charge of the karaoke apparatus 1 of its own matches the end number of the requested song number.

If there is karaoke data of the requested song in its own karaoke device 1 (S2
0: YES), the process proceeds to S100 and the hard disk 6
To read the song data. Then, the karaoke performance process is executed in S90, and the present process is terminated.

On the other hand, if there is no karaoke data of the requested song in the own karaoke apparatus 1 (S20:
NO), and the process proceeds to S30. In S30, the telephone number of the karaoke device 1 holding the karaoke data of the corresponding song is acquired by referring to the correspondence table of FIG. The karaoke device 1 that holds the karaoke data of the corresponding song may select from the device in which the last number of the requested song number is set as the assigned last number.

For example, a karaoke device 1 whose device ID is "1"
When a song number having a trailing number of "7" is requested in step 2, since it is not stored in its own hard disk 6, it is searched from the correspondence table of FIG. 3, but the device ID is found from the correspondence table. It can be seen that the three karaoke apparatuses 1 of "5, 6, 7" are applicable. In the present embodiment, when a plurality of karaoke devices 1 correspond to each other in this way, the device having a smaller device ID number is preferentially selected. Therefore, in this case, the karaoke device 1 having the device ID “5” is first selected and the telephone number thereof is acquired.

In subsequent S40, the telephone number is used to perform connection processing with the karaoke apparatus 1. When the connection is successful as a result of the connection processing (S50: YES),
In S60, karaoke data of a desired song is requested to the connected karaoke device 1. Then, in S70,
The karaoke data transmitted from the karaoke device 1 is received and stored in the internal memory. Then, after performing disconnection processing with the karaoke device 1 connected in S80,
In step S90, karaoke performance processing is performed using the karaoke data stored in the internal memory.

On the other hand, a negative judgment is made in S50, that is, S4
If the connection process performed at 0 is not successful, S11
Move to 0 to get the next phone number in charge. As described above, the karaoke device 1 storing the karaoke data of the song number having the ending number “7” has three device IDs “5, 6, 7” from the correspondence table of FIG. Since the device with the smaller device ID number is preferentially selected, the karaoke device 1 with the device ID “5” is initially selected. Therefore, in this S110, as the next karaoke device 1 in charge, the device having the device ID “6” is selected,
Get that phone number. In this case, since there is the next person in charge (S120: YES), the process proceeds to S40, and the connection process with the karaoke apparatus 1 is performed using the telephone number. The subsequent process is the same.

Further, as the karaoke device 1 in charge of the next one, the device having the device ID "6" is selected, and the connection process is performed by using the telephone number. If not (S50: N
O), the process proceeds to S110 again. This time, select the karaoke device 1 in charge of the next one with the device ID "7",
The same processing is performed.

However, if the connection is still unsuccessful even if the device ID "7" is selected and the connection processing is performed using the telephone number (S50: NO), the process proceeds to S110 again. Then, the telephone number of the next person in charge is obtained, but in that case, since there is no next person in charge (S120: NO), the process proceeds to S130. In S130, a display indicating that performance is not possible is displayed on the display 11 to notify the user. It should be noted that it is preferable to prompt a request for another song by having a content such as "I can't play, so please request another song."

As described above, in the karaoke system of this embodiment, the plurality of karaoke apparatuses 1 are the public telephone line 20.
Interconnected by Then, each karaoke device 1 in the system executes a predetermined karaoke performance process using the karaoke data corresponding to the requested song number. As shown in FIG. 3, the hard disk 6 of each karaoke device 1 is executed. In the table, only 3 pieces of karaoke data out of the total 10 pieces of ending numbers such as "1, 2, 3" and "2, 3, 4" are stored. Therefore, the remaining 7 songs cannot be played as they are with the ending numbers. Therefore, it connects to another karaoke device 1 having the karaoke data of the requested song number and obtains the desired karaoke data therefrom.

By doing so, the amount of karaoke data stored in the hard disk 6 of each karaoke device 1 can be reduced. For example, even if there are 10,000 karaoke songs whose song numbers are serial numbers "1 to 10000", each karaoke device 1 stores 3000 songs if stored like the correspondence table of FIG. Just doing it improves. Therefore, compared with the case where each karaoke device stores all 10,000 songs, the amount of storage required is three-tenths.

The karaoke apparatuses 1 in the system are distributed and stored as described above.
If one assigned end number is assigned to each of the karaoke apparatuses 1, only 1000 songs need be stored.
Of course, this is also possible, but if only one karaoke device 1 is stored for each song, the karaoke device 1 becomes unusable due to a failure or communication is not possible. When it becomes impossible, the music performance information that the karaoke apparatus 1 was in charge of cannot be used by any of the remaining karaoke apparatuses 1, which is not preferable in terms of system reliability. Alternatively, if a plurality of karaoke apparatuses 1 request karaoke data to a specific karaoke apparatus 1 even if the karaoke apparatus 1 does not break down, the karaoke apparatus 1 that has performed the connection process later does not succeed in connection. Or, when waiting for a turn, useless time elapses, and as a requesting user, it is difficult to start playing the requested song.

Therefore, by making one karaoke data redundantly stored by a plurality of karaoke devices 1 as in the above-described embodiment, the karaoke device 1 that accessed first may be out of order or cannot communicate. If not, it is possible to access another karaoke device 1 to acquire desired music performance information, and reliability is improved. In addition, in the above-mentioned embodiment, three karaoke devices 1 are configured to be redundantly stored for one karaoke data, but two karaoke devices 1 are redundantly stored or four or more karaoke devices 1 are stored. May be stored redundantly.

Further, in the above embodiment, S120 of FIG.
As shown in S130, if the desired karaoke data cannot be obtained from another karaoke device 1, the performance cannot be performed, but it may be obtained from the host computer 30, for example. As described above, the database of the host computer 30 includes the hard disk 6 of any karaoke device 1 in the system.
All the karaoke data stored in is stored. Therefore, if the karaoke data is acquired from the host computer 30, the fail-safe function is further exerted and the reliability is further improved.

There is an idea that the karaoke data which does not exist in the karaoke apparatus 1 of its own may be acquired from the host computer 30, but if this is done, all karaoke apparatuses 1 in the system will Since the host computer 30 is accessed to acquire karaoke data that does not exist in its own karaoke device 1, and the access is concentrated, there is a possibility that some karaoke devices 1 cannot be acquired immediately. Also, the communication load on the host computer 30 is usually
For example, the communication load between the karaoke apparatuses 1 is likely to be greater than that between the karaoke apparatuses 1 in terms of long-distance communication and use of high-speed communication network.

Therefore, it can be said from the viewpoint of system operation that the desired karaoke data is first acquired between the karaoke apparatuses 1 and if the desired karaoke data cannot be acquired from the host computer 30 for the first time.
As described above, the present invention is not limited to such embodiments at all, and can be implemented in various modes without departing from the gist of the present invention.

For example, in the above embodiment, as shown in the correspondence table of FIG. 3, the allocation is determined by the end number. However, for example, the music number which is a serial number from 1 to 10000 is the device ID "1". "1-3000" for device ID, "1001-4000" for device ID "2", device ID
"3" may be shared such as "2001-5000". However, in this case, it is possible that the songs having the same song numbers are released at the same time, songs of the same Jean, or songs of the same singer. If it is not 1, it is always necessary to obtain it from another karaoke device 1. In such a situation, it can be said that it is preferable to divide by the end number.

Further, in the above embodiment, the karaoke data is acquired from the other karaoke apparatus 1, but not only that but a predetermined program may be used. For example, in the karaoke device 1, of course, in addition to the above-mentioned karaoke performance process, a process of having the host computer 30 deliver karaoke data of a new song, a process of transmitting a log to the host computer 30, or a charging process is executed. In such a case, a program for processing other than the karaoke performance processing is acquired from another karaoke device 1.

The program for karaoke performance processing is excluded for the following reason. That is, this performance process is executed as a main process in each karaoke device 1. Therefore, theoretically, it is possible to obtain it from another karaoke device 1 only when it is necessary, but it is necessary to always store it during the performance processing, and if so, This is because it is more realistic for each karaoke device 1 to always have it.

On the other hand, the above-described new song distribution, log transmission, or billing process may be executed during a period when the karaoke performance process, which is the main process, is not executed, and particularly, the billing process is Execution at a pace of once a month is also sufficient. Therefore, unlike the above-described program for karaoke performance processing, the necessity that each karaoke apparatus 1 always has is extremely rare, and it is sufficient to acquire it from another when necessary. Further, for example, if the program cannot be obtained from another in order to execute the billing process, for example, even if the program is performed again after one hour, twelve hours, or the next day, the meaning of the extra billing process itself does not change. Since it is not something that can be lost, unlike in the case of karaoke performance processing, it cannot be fatally damaged in that it cannot respond to requests from users unless it can be obtained from other sources.

The process of obtaining this program from the karaoke apparatus 1 for karaoke is basically the same as the process relating to the karaoke performance described with reference to FIG. 4, and therefore will not be described again. Further, although the example in which the karaoke device 1 is applied as the music reproducing device has been described in the above-described embodiment, it is not limited to karaoke, and, for example, BG.
Ordinary music performance data used as M or the like (for example, karaoke without vocals means having vocals) can be applied.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration when a music reproduction system of the present invention is applied as a karaoke system.

FIG. 2 is a block diagram showing a configuration of a karaoke device as an example of a music reproducing device.

FIG. 3 is a table showing a relationship between a telephone number and a tail number in charge corresponding to a device ID.

FIG. 4 is a flowchart showing a karaoke performance process in the karaoke device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Karaoke device 2 ... Modem 3 ... Remote control light receiving unit 4 ... CPU 5 ... Playing device 6 ... Hard disk 8 ... Video mixer 10 ... Video playback player 11 ... Display 12 ... Remote control 13 ... Amplifier 14 ... Speaker 20 ... Public telephone line 30 ... Host computer

Claims (7)

[Claims] 1. A plurality of music reproducing devices comprising a storage means for storing music performance information and a music performance means for performing performance processing for outputting at least a performance sound by using the music performance information, a plurality of music reproduction devices comprising communication means. In the case where the music reproducing system connected to each other by the music reproducing device in the system does not store the music performance information necessary for the performance processing by the music performance means in the storage means, The necessary music performance information is acquired from another music reproducing device via the communication means, stored in a temporary storage means, and performance processing can be executed using the music performance information. Music playback system characterized by. 2. The music reproducing system according to claim 1, wherein the music performance information that can be processed by any of the music reproducing devices in the system is stored in at least two music reproducing devices for one music. A music reproducing system characterized by being stored in duplicate in the means. 3. The music reproduction system according to claim 1, wherein each of the music reproduction devices stores all music performance information that can be processed by any music reproduction device in the system. If it cannot be obtained from another music playback device because the necessary music performance information is not stored in the storage means, it is connected to the host device A music playback system, characterized in that it is configured to obtain information from the host device. 4. The music reproduction system according to claim 1, wherein the music reproduction device further includes a program for executing a predetermined type of processing including at least performance processing by the music performance means. When performing a process other than the performance process by the music performance unit, if a program for the process is not internally owned, the necessary program is stored in the communication unit. A music reproducing system which is configured to be acquired from another music reproducing device via the means, stored in the temporary storage means, and capable of executing a predetermined process using the program. 5. A music reproducing device comprising: storage means for storing music performance information; and music performance means for performing performance processing for outputting at least a performance sound by using the music performance information, and another music reproducing device by communication means. In a mutually connected music reproducing apparatus, if the music playing information necessary for the performance processing by the music playing means is not stored in the storage means, the necessary music playing information is transmitted to the communication device. A music reproducing device characterized in that it is acquired from another music reproducing device via the means and stored in a temporary storage means, and performance processing can be executed using the music performance information. 6. The music playback device according to claim 5, wherein a host device stores all music performance information that can be played by any of the other music playback devices connected to each other. If it is not possible to obtain from another music playback device because the music playing information necessary for performance processing is not stored in the storage means because it is connected by the communication means, the necessary music playing information is A music reproducing device, characterized in that the music reproducing device is configured to be acquired from the host device. 7. The music reproducing apparatus according to claim 5, further comprising a program storage means for storing a program for executing at least a predetermined type of processing including the performance processing by the music performance means. When performing a process other than the performance process by the music playing means, if a program for the process is not internally owned, the necessary program is transmitted to another music reproducing device via the communication means. A music reproducing device, which is configured to be capable of executing a predetermined process by using the program obtained from the temporary storage unit.