An automatic accompaniment apparatus including a determiner that determines a current position in a music piece in progress, a selector that selects an accompaniment element data set to be used out of a plurality of accompaniment element data sets every time the determined current position arrives at a predetermined switching position, an accompaniment data generator that generates accompaniment data indicating automatic accompaniment based on the selected accompaniment element data set, a calculator that calculates time information corresponding to a time required until the determined current position arrives at a next switching position, and a display controller that controls a display to display arrival advance notice information indicating the calculated time information.

Example methods, apparatus and articles of manufacture to determine semantic information for audio are disclosed. Example apparatus disclosed herein are to process an audio signal obtained by a media device to determine values of a plurality of features that are characteristic of the audio signal, compare the values of the plurality of features to a first template having corresponding first ranges of the plurality of features to determine a first score, the first template associated with first semantic information, compare the values of the plurality of features to a second template having corresponding second ranges of the plurality of features to determine a second score, the second template associated with second semantic information, and associate the audio signal with at least one of the first semantic information or the second semantic information based on the first score and the second score.

Example articles of manufacture and apparatus for producing supplemental information for audio signature data are disclosed herein. An example apparatus includes memory including computer readable instructions. The example apparatus also includes a processor to execute the instructions to at least obtain first audio signature data associated with a first time period of media, obtain first semantic signature data associated with the first time period of the media and second semantic signature data associated with a second time period of the media, and when second audio signature data associated with the second time period of the media is unavailable, identify the media based on the first audio signature data associated with the first time period of media when the second semantic signature data associated with the second time period matches the first semantic signature data associated with the first time period of the media.

An automatic performance device includes: a pattern storage part, storing a plurality of performance patterns; a performing part, performing a performance based on the performance pattern stored in the pattern storage part; an input part, inputting performance information from an input device; a rhythm detection part, detecting a rhythm from the performance information inputted by the input part; an acquisition part, acquiring from among the plurality of performance patterns stored in the pattern storage part the performance pattern corresponding to the rhythm detected by the rhythm detection part; and a switching part, switching the performance pattern being performed by the performing part to the performance pattern acquired by the acquisition part.

Presented herein are systems and methods for presenting content of an electronic book to provide real-time feedback to a user performing a musical piece, and to select content for subsequent presentation to the user based at least in part on an automated assessment of user performance of the musical piece.

A music composition, editing, and playback system and method provides a user interface design based on geometric interpretation of music theory replacing traditional modern music notation with geometric shapes including chords represented by polygons that are colored with colors or hues.

A music genre changing system and method including a platform for artists to license and generate a song with three versions of the song. The music genre changing system provides means to reach additional listeners with different tastes in music and allows artists to explore new genres of music. Each of the plurality of versions of the music audio file (song) consists of a custom content file of the same or a different genre. Lyrics, instrumentals, tone, and beat used may be converted and modified to create two variations of the original music audio file to provide three versions of one song.

An electronic musical instrument in one aspect of the disclosure includes; a plurality of operation elements to be performed by a user for respectively specifying different pitches; a memory that stores musical piece data that includes data of a vocal part, the vocal part including at least a first note with a first pitch and an associated first lyric part that are to be played at a first timing; and at least one processor, wherein if the user does not operate any of the plurality of operation elements in accordance with the first timing, the at least one processor digitally synthesizes a default first singing voice that includes the first lyric part and that has the first pitch in accordance with data of the first note stored in the memory, and causes the digitally synthesized default first singing voice to be audibly output at the first timing.

Provided is a game system capable of expanding the range of factors that affect the result of the music game. The game system is provided with control panels having individual rotational buttons. The game system provides a music game in which operation timings at which the individual rotational buttons are to be operated are guided in accordance with the rhythm of a musical piece selected from among a musical piece group. Furthermore, the game system awards card selection opportunities for selecting character cards to be used in play, from among a plurality of character cards prepared so as to have a plurality of skills which are different to each other, and which respectively correspond to changes. In a special mode, the game system implements, in the music game, the changes corresponding to the skills of the character cards selected at the card selection opportunities.

There is provided an information processing method including analyzing a beat of input music, extracting a plurality of unit images from an input image, and generating, by a processor, editing information for switching the extracted unit images depending on the analyzed beat.