Musical performance device, musical performance method, storage medium and electronic musical instrument

Patent metadata

Field	Value
Publication number	US-10186242-B2
Application number	US-201715692933-A
Country	US
Kind code	B2
Filing date	Aug 31, 2017
Priority date	Sep 5, 2016
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A musical performance device is provided by which, even by a novice user's operation, an attack sound, which is musically important, can be emitted as intended. In the device, sequence data representing each note of a musical piece for musical performance is provided for each track. When the sequence data of a certain segment of at least one track among these tracks is being replayed, if a target track to be replayed is specified from among the tracks not being replayed, the sequence data of the certain segment of the target track is replayed at a speed higher than a normal speed in accordance with a calculated playback rate, and then the target track and the other track are replayed at the normal speed.

First claim

What is claimed is:

1. A musical performance device comprising:
an operator; and
a processor, wherein the processor performs (i) first playback processing for playing back first music data at a first playback speed, and (ii) second playback processing for performing a fast-forward playback of a certain segment among a plurality of segments in second music data specified when a certain segment in the first music data is being played back by the first playback processing at the first playback speed, in accordance with a playback rate acquired based on a timing at which the second music data is specified by operation of the operator, and performing a playback of a next segment following the certain segment in the second music data at the first playback speed,
wherein the fast-forward playback of the certain segment in the second music data is performed at a second playback speed faster than the first playback speed of the next segment following the certain segment in the second music data, such that a timing at which a playback of a next segment following the certain segment in the first music data is started coincides with a timing at which the playback of the next segment following the certain segment in the second music data is started.

2. The musical performance device according to claim 1 , wherein the second playback processing is performed such that, after the fast-forward playback of the certain segment of the second music data, segments following the certain segment of the second music data are automatically played back without being fast-forwarded.

3. The musical performance device according to claim 1 , wherein the second playback processing is performed such that, after the fast-forward playback of the certain segment of the second music data, segments following the certain segment of the second music data are each automatically played back in synchronization with a segment of the first music data being played back by the first playback processing.

4. The musical performance device according to claim 1 , wherein the certain segment of the second music data is a head segment of a musical piece, and a fast-forward playback of the head segment of the second music data is performed in the second playback processing.

5. The musical performance device according to claim 1 , wherein the certain segment of the second music data is a current segment of the second music data corresponding to a current segment of the first music data being played back, and a fast-forward playback of the current segment of the second music data is performed in the second playback processing.

6. The musical performance device according to claim 1 , wherein the playback rate is calculated from the timing at which the second music data is specified by the operation of the operator, and a timing at which a playback of a next segment following a current segment of the first music data being played back is started, and the fast-forward playback of the certain segment of the second music data is performed in the second playback processing such that the timing at which the playback of the next segment following the current segment of the first music data is started coincides with timing at which a playback of a next segment following the certain segment of the second music data is started.

7. The musical performance device according to claim 1 , wherein the certain segment is a segment corresponding to a certain measure, and the playback in the second playback processing is performed such that playback speeds of a plurality of beats in the certain measure are equally high.

8. The musical performance device according to claim 1 , wherein the certain segment is a segment corresponding to at least one beat.

9. The musical performance device according to claim 1 , wherein the certain segment is a segment corresponding to at least one measure.

10. The musical performance device according to claim 1 , wherein the first music data is a single piece of data or plural pieces of data.

11. The musical performance device according to claim 1 , wherein the second music data is a single piece of data or plural pieces of data.

12. The musical performance device according to claim 1 , wherein the first music data and the second music data are repeatedly played back when a playback has been specified.

13. The musical performance device according to claim 1 , wherein the processor performs the first playback processing and the second playback processing simultaneously, such that the certain segment of the first music data is played back at the first playback speed while the certain segment of the second music data is played back at the second playback speed.

14. A musical performance method for a musical performance device, the method comprising:
playing back first music data at a first playback speed; and
performing a fast-forward playback of a certain segment among a plurality of segments in second music data specified when a certain segment in the first music data is being played back at the first playback speed, in accordance with a playback rate acquired based on a timing at which the second music data is specified by operation of an operator, and performing a playback of a next segment following the certain segment in the second music data at the first playback speed,
wherein the fast-forward playback of the certain segment in the second music data is performed at a second playback speed faster than the first playback speed of the next segment following the certain segment in the second music data, such that a timing at which a playback of a next segment following the certain segment in the first music data is started coincides with a timing at which the playback of the next segment following the certain segment in the second music data is started.

15. A non-transitory computer-readable storage medium having stored thereon a program that is executable by a computer in a musical performance device to actualize functions comprising:
playing back first music data at a first playback speed; and
performing a fast-forward playback of a certain segment among a plurality of segments in second music data specified when a certain segment in the first music data is being played back at the first playback speed, in accordance with a playback rate acquired based on a timing at which the second music data is specified by operation of an operator, and performing a playback of a next segment following the certain segment in the second music data at the first playback speed,
wherein the fast-forward playback of the certain segment in the second music data is performed at a second playback speed faster than the first playback speed of the next segment following the certain segment in the second music data, such that a timing at which a playback of a next segment following the certain segment in the first music data is started coincides with a timing at which the playback of the next segment following the certain segment in the second music data is started.

16. An electronic musical instrument comprising:
a keyboard having a plurality of keys, and
a processor,
wherein the processor performs (i) first playback processing for playing back, at a first playback speed, first music data specified by one of the plurality of keys being pressed, and (ii) second playback processing for performing a fast-forward playback of a certain segment among a plurality of segments in second music data specified by one of the plurality of keys being pressed when a certain segment in the first music data is being played back by the first playback processing at the first playback spee

Assignees

• Casio Computer Co Ltd

Inventors

• ISHIOKA Yousuke
• Notsu Tomomi

Classifications

• G10H1/344

  Structural association with individual keys (electrically operated wind-actuated organs G10B3/22) · CPC title

• G10H2210/076

  for extraction of timing, tempo; Beat detection · CPC title

• G10H2210/385

  Speed change, i.e. variations from preestablished tempo, tempo change, e.g. faster or slower, accelerando or ritardando, without change in pitch · CPC title

• G10H1/42

  comprising tone forming circuits · CPC title

• G10H1/0033 Primary

  Recording/reproducing or transmission of music for electrophonic musical instruments · CPC title