# US 8,772,618 B2 · Mixing automatic accompaniment input and musical device input during a loop recording > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,772,618 B2 - Document ID: US8772618B2 - Status: Granted - Kind: B2 - Application number: 13/194,839 - Filed: 2011-07-29 - Published: 2012-04-26 - Granted: 2014-07-08 - Earliest claimed: 2010-10-26 - Assignees: Roland Corporation - Applicants: Keisuke Matsumoto - Inventors: Keisuke Matsumoto - Web page: https://patentgrep.com/patent/US8772618B2 ## CPC - G10H 1/0033: {Recording/reproducing or transmission of music for electrophonic musical instruments} - G10H 1/0066: {using a MIDI interface} - G10H 1/36: Accompaniment arrangements - 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 Provided are a method, electronic musical instrument, and computer storage device for mixing automatic accompaniment input and musical device input during a loop recording. During a first loop recording, automatic accompaniment information is generated from a storage device having patterns of automatic accompaniment information. First musical device input is received from at least one coupled musical device. The first musical device input and the automatic accompaniment input based on the generated automatic accompaniment information are mixed to produce a first mixed output. The first mixed output in a recording memory. During a second loop recording following the first loop recording, the first mixed output is outputted from the recording memory. Second musical device input from the at least one coupled musical device is received while outputting the first mixed output. The received second musical device input and the first mixed output are mixed to produce second mixed output. The second mixed output is stored in the recording memory. ## Claims ### Claim 1 An electronic musical instrument comprising: an accompaniment sound generation device that sequentially generates accompaniment sounds; a storage device that sequentially stores musical sounds; a loop reproduction device that sequentially reads the musical sounds in a predetermined segment stored in the storage device while looping the predetermined segment to perform a loop reproduction; a loop storage control device by which musical sounds sequentially readout from the storage device by the loop reproduction device and at least one of accompaniment sounds sequentially generated by the accompaniment sound generation device and performance sounds sequentially inputted are mixed, and sequentially stored in the storage device while looping the predetermined segment; and an accompaniment sound storage control device that controls the loop storage control device to store the accompaniment sounds sequentially generated by the accompaniment sound generation device in the storage device for only one round of a loop of the predetermined segment. ### Claim 2 An electronic musical instrument comprising: an accompaniment sound generation device that sequentially generates accompaniment sounds based on performance information; a storage device that sequentially stores performance information; a loop reproduction device that sequentially reads the performance information in a predetermined segment stored in the storage device while looping the predetermined segment to perform a loop reproduction; a loop storage control device by which performance information sequentially readout from the storage device by the loop reproduction device and at least one of performance information of accompaniment sounds sequentially generated by the accompaniment sound generation device and performance information of performance sequentially inputted are merged, and sequentially stored in the storage device while looping the predetermined segment; and an accompaniment sound storage control device that controls the loop storage control device to store performance information of the accompaniment sounds sequentially generated by the accompaniment sound generation device in the storage device for only one round of a loop of the predetermined segment. ### Claim 3 A method, comprising: during a first loop recording, performing: generating automatic accompaniment information from a storage device having patterns of automatic accompaniment information; receiving first musical device input from at least one coupled musical device; mixing the first musical device input with automatic accompaniment input based on the generated automatic accompaniment information to produce a first mixed output; and storing the first mixed output in a recording memory; during a second loop recording following the first loop recording, performing: outputting the first mixed output from the recording memory; receiving second musical device input from the at least one coupled musical device while outputting the first mixed output; mixing the received second musical device input and the first mixed output to produce second mixed output; and storing the second mixed output in the recording memory. ### Claim 4 (depends on 3) The method of claim 3, wherein the automatic accompaniment input based on the generated automatic accompaniment information comprises the automatic accompaniment information and wherein the first and second musical device inputs comprise performance information, wherein during the first loop recording, further performing: transmitting the first mixed output to a sound source; and outputting, by the sound source, musical sounds based on the first mixed output, wherein the first mixed output includes the mixed generated automatic accompaniment information and the performance information from the at least one musical device before being processed by the sound source. ### Claim 5 (depends on 4) The method of claim 4, wherein during the second loop recording, further performing: outputting, by the sound source, musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output comprising the automatic accompaniment information and the performance information mixed during the first loop recording and the received second musical device input. ### Claim 6 (depends on 3) The method of claim 3, wherein during the first loop recording: outputting, by a sound source, first musical sounds from the automatic accompaniment information generated from the storage device, wherein the automatic accompaniment input comprises the musical sounds from the sound source; outputting, by the sound source, second musical sounds from performance information from the at least one musical device, wherein the first musical device input comprises the second musical sounds from the sound source, wherein the first mixed output comprises the mixing of the first and second musical sounds. ### Claim 7 (depends on 6) The method of claim 6, wherein during the second loop recording, further performing: outputting, by the sound source, third musical sounds from performance information from the at least one musical device, wherein the second musical device input comprises the third musical sounds from the sound source, outputting, by the sound source, fourth musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output and the third musical sounds received while outputting the musical sounds from the second mixed output. ### Claim 8 (depends on 3) The method of claim 3, wherein during the second loop recording, automatic accompaniment information is not generated from the storage device to provide to the mixing to produce the second mixed output during the second loop recording. ### Claim 9 (depends on 3) The method of claim 3, wherein during the second loop recording, further performing: generating from the storage device the automatic accompaniment information configured so that any produced sounds from the automatic accompaniment information are muted, wherein the automatic accompaniment information generated from the storage device during the second loop recording is not included in the second mixed output and is not recorded on the recording memory with the second mixed output. ### Claim 10 An electronic musical instrument coupled to at least one musical device, comprising: a processing unit; a recording memory; automatic accompaniment pattern memory having patterns of automatic accompaniment information; and a computer storage device including a control program executed by the processing unit to perform operations, the operations comprising: during a first loop recording, performing: generating from the automatic accompaniment pattern memory automatic accompaniment information; receiving first musical device input from the at least one musical device; mixing the first musical device input with automatic accompaniment input based on the generated automatic accompaniment information to produce a first mixed output; and storing the first mixed output in the recording memory; during a second loop recording following the first loop recording, performing: outputting the first mixed output from the recording memory; receiving second musical device input from the at least one musical device while outputting the first mixed output; mixing the received second musical device input and the first mixed output to produce second mixed output; and storing the second mixed output in the recording memory. ### Claim 11 (depends on 10) The electronic musical instrument of claim 10, further comprising: a sound source, wherein the automatic accompaniment input based on the generated automatic accompaniment information comprises the automatic accompaniment information and wherein the first and second musical device inputs comprise performance information, wherein during the first loop recording the operations further comprise: transmitting the first mixed output to a sound source; and controlling the sound source to output musical sounds based on the first mixed output, wherein the first mixed output includes the mixed generated automatic accompaniment information and the performance information from the at least one musical device before being processed by the sound source. ### Claim 12 (depends on 11) The electronic musical instrument of claim 11, wherein during the second loop recording, the operations further comprise controlling the sound source to output musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output comprising the automatic accompaniment information and the performance information mixed during the first loop recording and the received second musical device input. ### Claim 13 (depends on 10) The electronic musical instrument of claim 10, further comprising: a sound source, wherein during the first loop recording the operations further comprise: controlling the sound source to output first musical sounds from the automatic accompaniment information generated from the storage device, wherein the automatic accompaniment input comprises the musical sounds from the sound source; and controlling the sound source to output second musical sounds from performance information from the at least one musical device, wherein the first musical device input comprises the second musical sounds from the sound source, wherein the first mixed output comprises the mixing of the first and second musical sounds. ### Claim 14 (depends on 13) The electronic musical instrument of claim 13, wherein during the second loop recording the operations further comprise: controlling the sound source to output third musical sounds from performance information from the at least one musical device, wherein the second musical device input comprises the third musical sounds from the sound source; and controlling the sound source to output fourth musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output and the third musical sounds received while outputting the musical sounds from the second mixed output. ### Claim 15 (depends on 10) The electronic musical instrument of claim 10, wherein during the second loop recording, automatic accompaniment information is not generated from the storage device to provide to the mixing to produce the second mixed output during the second loop recording. ### Claim 16 (depends on 10) The electronic musical instrument of claim 10, wherein during the second loop recording the operations further comprise: generating from the storage device the automatic accompaniment information configured so that any produced sounds from the automatic accompaniment information are muted, wherein the automatic accompaniment information generated from the storage device during the second loop recording is not included in the second mixed output and is not recorded on the recording memory with the second mixed output. ### Claim 17 A computer storage device storing a control program executed by a processor in an electronic musical instrument to communicate with a storage device, a recording memory, and at least one musical device, and to perform operations, the operations comprising: during a first loop recording, performing operations comprising: generating automatic accompaniment information from the storage device having patterns of automatic accompaniment information; receiving first musical device input from the at least one musical device; mixing the first musical device input with automatic accompaniment input based on the generated automatic accompaniment information to produce a first mixed output; and storing the first mixed output in the recording memory; during a second loop recording following the first loop recording, performing operations comprising: outputting the first mixed output from the recording memory; receiving second musical device input from the at least one musical device while outputting the first mixed output; mixing the received second musical device input and the first mixed output to produce second mixed output; and storing the second mixed output in the recording memory. ### Claim 18 (depends on 17) The computer storage device of claim 17, wherein the code is further executed to communicate with a sound source, wherein the automatic accompaniment input based on the generated automatic accompaniment information comprises the automatic accompaniment information and wherein the first and second musical device inputs comprise performance information, wherein during the first loop recording, the operations further comprise: transmitting the first mixed output to the sound source; and controlling the sound source to output first musical sounds based on the first mixed output, wherein the first mixed output includes the mixed generated automatic accompaniment information and the performance information from the at least one musical device before being processed by the sound source. ### Claim 19 (depends on 18) The computer storage device of claim 18, wherein during the second loop recording the operations further comprise: controlling the sound source to output musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output comprising the automatic accompaniment information and the performance information mixed during the first loop recording and the received second musical device input. ### Claim 20 (depends on 17) The computer storage device of claim 17, wherein the code is further executed to communicate with a sound source, wherein during the first loop recording the operations further comprise: controlling the sound source to output first musical sounds from the automatic accompaniment information generated from the storage device, wherein the automatic accompaniment input comprises the musical sounds from the sound source; controlling the sound source to output second musical sounds from performance information from the at least one musical device, wherein the first musical device input comprises the second musical sounds from the sound source, wherein the first mixed output comprises the mixing of the first and second musical sounds. ### Claim 21 (depends on 20) The computer storage device of claim 20, wherein during the second loop recording the operations further comprise: controlling the sound source to output third musical sounds from performance information from the at least one musical device, wherein the second musical device input comprises the third musical sounds from the sound source, outputting, by the sound source, fourth musical sounds based on the second mixed output, wherein the second mixed output includes the first mixed output and the third musical sounds received while outputting the musical sounds from the second mixed output. ### Claim 22 (depends on 17) The computer storage device of claim 17, wherein during the second loop recording, automatic accompaniment information is not generated from the storage device to provide to the mixing to produce the second mixed output during the second loop recording. ### Claim 23 (depends on 17) The computer storage device of claim 17, wherein during the second loop recording the operations further comprise: generating from the storage device the automatic accompaniment information configured so that any produced sounds from the automatic accompaniment information are muted, wherein the automatic accompaniment information generated from the storage device during the second loop recording is not included in the second mixed output and is not recorded on the recording memory with the second mixed output.