The last nightingale, the king's nightingale, used pure music nightingale:

The king's nightingale was an animated film directed by JiriTrnkaMilosMakovec, and boris karloff participated in the performance.

The king's nightingale describes that an emperor of China kept a nightingale, but the nightingale flew away because the mechanical bird paid tribute by officials ignored it. After the king's mechanical bird broke down, he missed the story of the nightingale very much.

It is said that Disney intends to make the king and the nightingale in Andersen's fairy tale into an animated cartoon, which describes the story of an emperor in China and his nightingale. Originally, the emperor liked to listen to the nightingale sing, but later someone paid tribute to a mechanical bird that could sing and dance, so the nightingale was left out of the palace and stopped staying with the emperor.

Later, the emperor's robot bird broke down and could no longer sing to him. Only then did the emperor miss the beauty of the nightingale again and hoped that the nightingale would come back to him.