Electronic musical instrument, control method and storage medium

A control method that is executed by a computer, the control method comprising:

• starting a music piece advancing process based on music piece data;
• determining a first pitch that (i) corresponds to one of chord constituent notes that correspond to chord information at a timing at which an operation element of a plurality of operation elements is specified by a user, the chord information being obtained from the music piece data, and (ii) is closest to a pitch corresponding to the specified operation element;
• in response to a musical tone of the first pitch being not emitted, causing a sound emitter to emit the musical tone of the first pitch;
• and
• in response to the musical tone of the first pitch being emitted, causing the sound emitter to emit a musical tone of a second pitch that corresponds to another one of the chord constituent notes and is present in a direction viewed from the first pitch, the direction being identical with a direction in which the pitch corresponding to the operation element currently specified is viewed from a pitch corresponding to an operation element of the plurality of operation elements previously specified.

A non-transitory computer-readable storage medium storing a program causing a computer to:

• start a music piece advancing process based on music piece data;
• determine a first pitch that (i) corresponds to one of chord constituent notes that correspond to chord information at a timing at which an operation element of a plurality of operation elements is specified by a user, the chord information being obtained from the music piece data, and (ii) is closest to a pitch corresponding to the specified operation element;
• in response to a musical tone of the first pitch being not emitted, cause a sound emitter to emit the musical tone of the first pitch;
• and
• in response to the musical tone of the first pitch being emitted, cause the sound emitter to emit a musical tone of a second pitch that corresponds to another one of the chord constituent notes and is present in a direction viewed from the first pitch, the direction being identical with a direction in which the pitch corresponding to the operation element currently specified is viewed from a pitch corresponding to an operation element of the plurality of operation elements previously specified.