An electronic musical instrument includes; a plurality of keys, each of the plurality of keys specifying a pitch; a memory storing musical piece data representing a musical piece; and a processor, wherein the processor executes the following: retrieving the musical piece data of a musical piece from the memory and determining whether the musical piece data contains data of a lyric; and when the musical piece data contains the data of the lyric, and if a note specified by an operation of a key by a user is accompanied by a part of the lyric in the musical piece, causing data of a singing voice sound having the pitch specified by said operated key to be generated in accordance with the part of the lyric in response to the operation of the key, and causing the singing voice sound to be audibly output.