Abstract: An electronic musical instrument in one aspect of the disclosure includes a keyboard, a processor and a memory that stores musical piece data that includes data of a vocal part, the vocal part including at least first and second notes together with associated first and second lyric parts that are to be successively played at the first and second timings, respectively, wherein if while a digitally synthesized first signing voice corresponding to the first note is being output, a user specifies, via keyboard, a third pitch that is different from the first and second notes prior to the arrival of the second timing, the at least one processor synthesizes a modified first singing voice having the third pitch in accordance with the data of the first lyric part, and causes the digitally synthesized modified first singing voice to be audibly output at the third timing.

Abstract: An electronic musical instrument in one aspect of the disclosure includes; a plurality of operation elements to be performed by a user for respectively specifying different pitches; 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; and at least one processor, wherein if the user does not operate any of the plurality of operation elements in accordance with the first timing, the at least one processor digitally synthesizes 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 causes the digitally synthesized default first singing voice to be audibly output at the first timing.

Abstract: A playback device includes a first buffer and a second buffer, each having storage regions, and a processing unit. The processing unit performs: a storage process that causes input audio data to be stored in the storage regions of the first buffer in order; a first playback process that causes the stored audio data to be played back in the order in which the audio data was stored; a designation process that designates, in response to a user input, at least one of the plurality of storage regions of the first buffer in which the audio data is stored; a copy process that causes the audio data stored in the designated storage region of the first buffer to be copied to the second buffer; and a second playback process that causes the audio data copied to the second buffer to be repeatedly played back.

Abstract: A playback device includes a first buffer and a second buffer, each having storage regions, and a processing unit. The processing unit performs: a storage process that causes input audio data to be stored in the storage regions of the first buffer in order; a first playback process that causes the stored audio data to be played back in the order in which the audio data was stored; a designation process that designates, in response to a user input, at least one of the plurality of storage regions of the first buffer in which the audio data is stored; a copy process that causes the audio data stored in the designated storage region of the first buffer to be copied to the second buffer; and a second playback process that causes the audio data copied to the second buffer to be repeatedly played back.