A method and a device for producing an imitative animal's voice to embellish a music. The animals voice is analyzed and approximated into a waveform represented exclusively by HIGH/LOW, and the time data X of each group of consecutive intervals of the same state are stored in a first ROM. The data X are stored in the consecutive addresses of a first read only memory ROM. When the ROM receives a pulse from a first address counter, the datum X stored in the mth address of the ROM will be sent to a first divider means if the address count of the first address counter is m. To further melodize the imitative animal's voice, the clocks from a first clock generator are compressed or expanded. The data Y, Z of the notes of the desired melody are stored in the consecutive addresses of a second ROM to respectively control the average (or apparent) pitch of the produced imitative voice and the duration of the voice at a given pitch. The device to melodize the imitative voice further comprises a second clock generator, of which the period t.sub.u " is equal to the length of the shortest note of the melody.