Sheet music output device, sheet music output method, and non-transitory recording medium

Patent metadata

Field	Value
Publication number	US-2025174212-A1
Application number	US-202418954402-A
Country	US
Kind code	A1
Filing date	Nov 20, 2024
Priority date	Nov 24, 2023
Publication date	May 29, 2025
Grant date	—

Abstract

In a sheet music output device, a sheet music output method, and a non-transitory recording medium, the non-transitory recording medium stores a sheet music output program that causes a computer to execute a sheet music output process outputting sheet music based on performance information. The sheet music output program causes the computer to: time a note-on time difference between adjacent notes in a series of notes included in the performance information; and output sheet music on which ornamental notes corresponding to the series of notes are arranged in a case where the note-on time difference of the series of notes timed in the timing satisfies a predetermined detection condition.

First claim

What is claimed is:

1 . A non-transitory recording medium storing a sheet music output program that causes a computer to execute a sheet music output process outputting sheet music based on performance information,
the sheet music output program causing the computer to: time a note-on time difference between adjacent notes in a series of notes included in the performance information, and output sheet music on which ornamental notes corresponding to the series of notes are arranged in a case where the note-on time difference of the series of notes timed in the timing satisfies a predetermined detection condition.

2 . The non-transitory recording medium according to claim 1 , wherein
the timing comprises timing the note-on time difference based on actual time.

3 . The non-transitory recording medium according to claim 2 , wherein
the timing comprises timing actual time of the note-on time difference based on a tick value corresponding to the note-on time difference calculated from tick values corresponding to start times of respective notes of the series of notes, and a tempo based on the performance information.

4 . The non-transitory recording medium according to claim 1 , wherein
the computer comprises a storage device, and causes the storage device to act as a detection condition storage part that stores, for each tempo, the detection condition based on a tick value corresponding to the tempo, the timing comprises timing a tick value corresponding to the note-on time difference from tick values corresponding to respective start times of the series of notes, and the outputting of the sheet music comprises outputting sheet music on which ornamental notes corresponding to the series of notes are arranged in a case where the tick value corresponding to the note-on time difference of the series of notes timed in the timing satisfies the detection condition stored in the detection condition storage part corresponding to the tempo based on the performance information.

5 . The non-transitory recording medium according to claim 1 , wherein
the outputting of the sheet music comprises outputting sheet music on which ornamental notes of an appoggiatura are arranged as ornamental notes corresponding to the series of notes in a case where: the note-on time difference of the series of notes timed in the timing is equal to or greater than a first time difference and equal to or less than a second time difference, a quantity of notes of the series of notes is equal to or greater than a first predetermined number and equal to or less than a second predetermined number, a ratio of a velocity of a last note, which is a last note among the series of notes, to a velocity of a note other than the last note among the series of notes is equal to or greater than a velocity ratio, and a sounding duration of the note other than the last note among the series of notes is equal to or less than a maximum sounding duration.

6 . The non-transitory recording medium according to claim 1 , wherein
the outputting of the sheet music comprises outputting sheet music on which ornamental notes of an arpeggio are arranged as ornamental notes corresponding to the series of notes in a case where: the note-on time difference of the series of notes timed in the timing is equal to or greater than a third time difference and equal to or less than a fourth time difference, an average value of the note-on time difference of the series of notes is equal to or greater than a first average value and equal to or less than a second average value, a quantity of notes of the series of notes is equal to or greater than a third predetermined number and equal to or less than a fourth predetermined number, respective sounding periods of adjacent notes among the series of notes overlap by a predetermined ratio or more, and the series of notes is arranged in an ascending pitch sequence.

7 . The non-transitory recording medium according to claim 1 , wherein
the outputting of the sheet music comprises outputting sheet music on which ornamental notes of a trill are arranged as ornamental notes corresponding to the series of notes in a case where: the note-on time difference of the series of notes timed in the timing is equal to or greater than a fifth time difference and equal to or less than a sixth time difference, a quantity of notes of the series of notes is equal to or greater than a fifth predetermined number, and the series of notes alternately repeats sounds that differ by a whole tone or a semitone.

8 . The non-transitory recording medium according to claim 1 , wherein
the computer comprises a storage device, and causes the storage device to act as a model storage part that stores a learning model trained on the note-on time difference, a velocity, and a sounding duration of the series of notes, and ornamental notes that should be detected from the note-on time difference, the velocity, and the sounding duration of the series of notes, and the outputting of the sheet music comprises outputting sheet music on which ornamental notes corresponding to the series of notes are arranged by inputting the note-on time difference of the series of notes timed in the timing, the velocity and the sounding duration of the series of notes into the learning model stored in the model storage part.

9 . A sheet music output device outputting sheet music based on performance information, the sheet music output device comprising a processor configured to:
time a note-on time difference between adjacent notes in a series of notes included in the performance information, and output sheet music on which ornamental notes corresponding to the series of notes are arranged in a case where the note-on time difference of the series of notes timed satisfies a predetermined detection condition.

10 . A sheet music output method outputting sheet music based on performance information, the sheet music output method comprising:
timing a note-on time difference between adjacent notes in a series of notes included in the performance information; and outputting sheet music on which ornamental notes corresponding to the series of notes are arranged in a case where the note-on time difference of the series of notes timed in the timing satisfies a predetermined detection condition.

11 . The non-transitory recording medium according to claim 2 , wherein
the outputting of the sheet music comprises outputting sheet music on which ornamental notes of an appoggiatura are arranged as ornamental notes corresponding to the series of notes in a case where: the note-on time difference of the series of notes timed in the timing is equal to or greater than a first time difference and equal to or less than a second time difference, a quantity of notes of the series of notes is equal to or greater than a first predetermined number and equal to or less than a second predetermined number, a ratio of a velocity of a last note, which is a last note among the series of notes, to a velocity of a note other than the last note among the series of notes is equal to or greater than a velocity ratio, and a sounding duration of the note other than the last note among the series of notes is equal to or less than a maximum sounding duration.

12 . The non-transitory recording medium according to claim 3 , wherein
the outputting of the sheet music comprises outputting sheet music on which ornamental notes of an appoggiatura are arranged as ornamental notes corresponding to the series of notes in a case where: the note-on time difference of the series of notes timed in the timing is equal to or greater than a first time difference and equal to or less than a second

Assignees

• Roland Corp

Inventors

• Susami Ryo

Classifications

• G10H1/0066

  using a MIDI interface · CPC title

• G10H2210/191

  Tremolo, tremulando, trill or mordent effects, i.e. repeatedly alternating stepwise in pitch between two note pitches or chords, without any portamento between the two notes · CPC title

• G10H2210/181

  Gracenote, i.e. adding a different and very short ornamental note at the beginning or at the end of a melody note, e.g. appoggiatura, acciaccatura, sparsh-swar · CPC title

• G10H2210/185

  Arpeggio, i.e. notes played or sung in rapid sequence, one after the other, rather than ringing out simultaneously, e.g. as a chord; Generators therefor, i.e. arpeggiators; Discrete glissando effects on instruments not permitting continuous glissando, e.g. xylophone or piano, with stepwise pitch variation and on which distinct onsets due to successive note triggerings can be heard · CPC title

• G10H2210/161

  Note sequence effects, i.e. sensing, altering, controlling, processing or synthesising a note trigger selection or sequence, e.g. by altering trigger timing, triggered note values, adding improvisation or ornaments or also rapid repetition of the same note onset · CPC title