Electronic musical instrument, electronic musical instrument control method, and storage medium

A method performed by at least one processor in an electronic musical instrument that includes, in addition to the at least processor:

• a performance receiver having a plurality of operation elements to be performed by a user for respectively specifying different pitches of musical notes;
• and a memory that stores musical piece data that includes data of a vocal part, the vocal part including at least a first note with a first pitch and an associated first lyric part that are to be played at a first timing, the method comprising, via the at least one processor, the following:
• if the user specifies, via the performance receiver, a pitch in accordance with the first timing,
• digitally synthesizing a played first singing voice that includes the first lyric part and that has the pitch specified by the user regardless of whether the pitch specified by the user coincides with the first pitch, and
• causing the digitally synthesized played first singing voice to be audibly output at the first timing;
• and
• if the user does not operate any of the plurality of operation elements of the performance receiver in accordance with the first timing,
• digitally synthesizing a default first singing voice that includes the first lyric part and that has the first pitch in accordance with data of the first note stored in the memory, and
• causing the digitally synthesized default first singing voice to be audibly output at the first timing.

A non-transitory computer-readable storage medium having stored thereon a program executable by at least one processor in an electronic musical instrument that includes, in addition to the at least processor:

• a performance receiver having a plurality of operation elements to be performed by a user for respectively specifying different pitches of musical notes;
• and a memory that stores musical piece data that includes data of a vocal part, the vocal part including at least a first note with a first pitch and an associated first lyric part that are to be played at a first timing, the program causing the at least one processor to perform the following:
• if the user specifies, via the performance receiver, a pitch in accordance with the first timing,
• digitally synthesizing a played first singing voice that includes the first lyric part and that has the pitch specified by the user regardless of whether the pitch specified by the user coincides with the first pitch, and
• causing the digitally synthesized played first singing voice to be audibly output at the first timing;
• and
• if the user does not operate any of the plurality of operation elements of the performance receiver in accordance with the first timing,
• digitally synthesizing a default first singing voice that includes the first lyric part and that has the first pitch in accordance with data of the first note stored in the memory, and
• causing the digitally synthesized default first singing voice to be audibly output at the first timing.