# US 12,223,933 B2 · Electronic musical apparatus, storage medium storing recording/reproduction program, and recording/reproduction method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,933 B2 - Document ID: US12223933B2 - Status: Granted - Kind: B2 - Application number: 17/469,851 - Filed: 2021-09-08 - Published: 2022-03-17 - Granted: 2025-02-11 - Earliest claimed: 2020-09-11 - Assignees: Roland Corporation - Applicants: Roland Corporation - Inventors: Hideyuki Mamori; Shinya Kondo; Yasuhisa Umano - Web page: https://patentgrep.com/patent/US12223933B2 ## CPC - G10H 1/0066: {using a MIDI interface} - G10H 1/40: Rhythm - G10H 1/0008: {Associated control or indicating means} - G10H 1/0033: {Recording/reproducing or transmission of music for electrophonic musical instruments} - G10H 2210/076: for extraction of timing, tempo; Beat detection - G10H 2210/341: Rhythm pattern selection, synthesis or composition - G10H 2210/391: Automatic tempo adjustment, correction or control - G10H 2250/641: Waveform sampler, i.e. music samplers; Sampled music loop processing, wherein a loop is a sample of a performance that has been edited to repeat seamlessly without clicks or artifacts - G10H: ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE ## Abstract There are provided an electronic musical apparatus, a storage medium storing a recording/reproduction program, and a recording/reproduction method capable of outputting a musical sound phrase and a rhythm phrase after the input musical sound phrase is output. In a case where a recording button is operated, a looper starts to record musical sounds. In this case, the musical sounds (that is, a musical sound phrase) that are being recorded are output from a speaker. Thereafter, in a case where a loop reproduction button is operated, the recording is stopped, and loop reproduction of the recorded musical sound phrase and a rhythm phrase is started. Consequently, it is possible to output musical sounds in which the musical sound phrase and the rhythm phrase are loop-reproduced after the input musical sound phrase is output. ## Claims ### Claim 1 An electronic musical apparatus that records an input guitar sound phrase and reproduces the guitar sound phrase and a rhythm phrase formed of MIDI data, the electronic musical apparatus comprising: a processor configured to: sequentially acquire a first timing based on an input timing of a first instruction and a second timing based on an input timing of a second instruction after the first timing; and at the first timing, start to record guitar sounds input from a guitar, and, at the second timing, determine a phrase based on the guitar sounds recorded from the first timing to the second timing as the guitar sound phrase, start to reproduce the rhythm phrase from a beginning of the rhythm phrase simultaneously with starting to reproduce the guitar sound phrase from a beginning of the guitar sound phrase, and output the reproduced rhythm phrase and the reproduced guitar sound phrase to a speaker. ### Claim 2 (depends on 1) The electronic musical apparatus according to claim 1, wherein the processor sets a tempo of the rhythm phrase such that a timing of an end of the reproduced guitar sound phrase matches a timing of an end of the reproduced rhythm phrase. ### Claim 3 (depends on 1) The electronic musical apparatus according to claim 1, wherein the processor loop-reproduces the guitar sound phrase from the beginning of the guitar sound phrase to an end of the guitar sound phrase after reproduction of the guitar sound phrase is started. ### Claim 4 (depends on 1) The electronic musical apparatus according to claim 1, wherein the processor designates a number of duplicates, wherein the processor determines, as the guitar sound phrase, a second phrase obtained by duplicating the phrase based on the guitar sounds recorded from the first timing to the second timing by the designated number of duplicates and connecting the duplicated phrases to each other. ### Claim 5 (depends on 1) The electronic musical apparatus according to claim 1, wherein the processor acquires, as the second timing, a musical timing after the input timing of the second instruction. ### Claim 6 (depends on 5) The electronic musical apparatus according to claim 5, wherein the musical timing is a timing of an end of a bar or a beat. ### Claim 7 (depends on 1) The electronic musical apparatus according to claim 1, wherein the first instruction and the second instruction are input through an operation on the same operator. ### Claim 8 (depends on 1) The electronic musical apparatus according to claim 1, wherein the processor acquires a phrase length of the guitar sound phrase, and acquires a combination of a number of bars and a tempo such that a time required for the combination of the number of bars and the tempo is approximate to the phrase length of the guitar sound phrase. ### Claim 9 (depends on 8) The electronic musical apparatus according to claim 8, wherein, in a case where a plurality of the combinations of the number of bars and tempos is acquired, the processor sets, as a tempo of the rhythm phrase, a slowest tempo among the plurality of acquired combinations of the number of bars and tempos. ### Claim 10 A storage medium storing a recording/reproduction program causing a computer to record an input guitar sound phrase and reproduce the guitar sound phrase and a rhythm phrase formed of MIDI data, the recording/reproduction program causing the computer to execute: a timing acquisition step of sequentially acquiring a first timing based on an input timing of a first instruction and a second timing based on an input timing of a second instruction after the first timing; and a recording/reproduction control step of, at the first timing acquired in the timing acquisition step, starting to record guitar sounds input from a guitar, and, at the second timing acquired in the timing acquisition step, determining a phrase based on the guitar sounds recorded from the first timing to the second timing as the guitar sound phrase, and starting to reproduce the rhythm phrase from a beginning of the rhythm phrase simultaneously with starting to reproduce the guitar sound phrase from a beginning of the guitar sound phrase, and outputting the reproduced rhythm phrase and the reproduced guitar sound phrase to a speaker. ### Claim 11 A recording/reproduction method of recording an input guitar sound phrase and reproducing the guitar sound phrase and a rhythm phrase which is a rhythm pattern or MIDI data at a tempo, the recording/reproduction method comprising: according to a first operation, starting to record guitar sounds input from a guitar, and, according to a second operation, determining a phrase based on the guitar sounds recorded from the first operation to the second operation as the guitar sound phrase, starting to reproduce the rhythm phrase from a beginning of the rhythm phrase simultaneously with starting to reproduce the guitar sound phrase from a beginning of the guitar sound phrase, and outputting the reproduced rhythm phrase and the reproduced guitar sound phrase to a speaker. ### Claim 12 (depends on 11) The recording/reproduction method according to claim 11, wherein a tempo of the rhythm phrase is set such that a timing of an end of the reproduced guitar sound phrase matches a timing of an end of the reproduced rhythm phrase. ### Claim 13 (depends on 11) The recording/reproduction method according to claim 11, wherein the guitar sound phrase is loop-reproduced from the beginning of the guitar sound phrase to an end of the guitar sound phrase after reproduction of the guitar sound phrase is started. ### Claim 14 (depends on 11) The recording/reproduction method according to claim 11, wherein a number of duplicates is designated, and wherein a phrase obtained by duplicating the phrase based on the guitar sounds recorded from the first operation to the second operation by the designated number of duplicates and connecting the duplicated phrases to each other is determined as the guitar sound phrase. ### Claim 15 (depends on 11) The recording/reproduction method according to claim 11, wherein a musical timing after the second operation is acquired as a timing of the second operation. ### Claim 16 (depends on 15) The recording/reproduction method according to claim 15, wherein the musical timing is a timing of an end of a bar or a beat. ### Claim 17 (depends on 11) The recording/reproduction method according to claim 11, wherein the first operation and the second operation are input through an operation on the same operator. ### Claim 18 (depends on 11) The recording/reproduction method according to claim 11, wherein a phrase length of the guitar sound phrase is acquired, and a combination of the number of bars and a tempo corresponding to a time approximate to the phrase length of the guitar sound phrase is acquired.