Electronic musical instrument, and control method of electronic musical instrument

An electronic musical instrument, comprising:

• a plurality of keys that specify different pitches respectively when operated;
• a speaker;
• and
• a processor that executes the following:
• sorting processing for sorting pitches corresponding to the operated keys in order from a lowest pitch to a highest pitch or from a highest pitch to a lowest pitch,
• grouping processing for grouping pitches into a plurality of groups including a group including first pitch and a group including second pitch when a pitch difference between the first pitch and the second pitch, which are adjacent to each other after sorting of the sorting processing, is a major third or larger,
• first outputting processing for determining that the operated keys are not in a dense state when a pitch difference between any adjacent pitches among pitches included in any of groups obtained by the grouping processing is not a major second or smaller, and outputting a first sound from the speaker, wherein the first sound is generated based on both the pitches specified by the operated keys and sound volume information obtained by the operation, and
• second outputting processing for determining that the operated keys are in a dense state when pitch differences between all adjacent pitches included in any of groups obtained by the grouping processing are a major second or smaller, and outputting a second sound from the speaker, wherein the second sound generated not based on at least one of the pitches specified by the operated keys and the sound volume information obtained by the operation.

A method of causing a computer of an electronic musical instrument, that includes

• a plurality of keys that specify different pitches respectively when operated,
• a memory that stores each pattern data showing a combination of a plurality of pitches that comprises a consonance, and
• a speaker, to perform
• determining processing for determining, in response to an operation of the plurality of keys, whether a combination of the operated keys matches any of the pattern data stored in the memory,
• first outputting processing for outputting a first sound from the speaker, when combination of the operated keys matches any of the pattern data, wherein the first sound is generated based on both the pitches specified by the operated keys and sound volume information obtained by the operation, and
• second outputting processing for outputting a second sound different from the first sound from the speaker, when the combination of the operated keys does not match any of the pattern data, wherein the second sound is generated not based on at least one of the pitches specified by the operated keys and the sound volume information obtained by the operation.

A method that causes a computer of an electronic musical instrument, that includes

• a plurality of keys that specify different pitches respectively when operated;
• and
• a speaker, to execute
• sorting processing for sorting pitches corresponding to the operated keys in order from a lowest pitch to a highest pitch or from a highest pitch to a lowest pitch,
• grouping processing for grouping pitches into a plurality of groups including a group including first pitch and a group including second pitch when a pitch difference between the first pitch and the second pitch, which are adjacent to each other after sorting of the sorting processing, is a major third or larger,
• first outputting processing for determining that the operated keys are not in a dense state when a pitch difference between any adjacent pitches among pitches included in any of groups obtained by the grouping processing is not a major second or smaller, and outputting a first sound from the speaker, wherein the first sound is generated based on both the pitches specified by the operated keys and sound volume information obtained by the operation, and
• second outputting processing for determining that the operated keys are in a dense state when pitch differences between all adjacent pitches included in any of groups obtained by the grouping processing are a major second or smaller, and outputting a second sound from the speaker, wherein the second sound generated not based on at least one of the pitches specified by the operated keys and the sound volume information obtained by the operation.