The ability to memorize and learn which human brain has are excellent. And it is a big research to know the mechanism. A neural network is one of the reserches which expresses the composition of the brain in false. In the past, various forms of neural network werw created by many researchers.
In this study, three kinds of neural networks are used using two kinds of neurons. One reproduces a brain by the modeled nerve cell which is called neuron. Another network has a storage cell inside. The other network is comporsed of chaotic neuron. The purpose of this study is recalling the music which repeats the same phrase. Therefore, the data of two value are added to each note at random. By inputting them, two kinds of neural networks are made to learn. Using the connection weight after learning, three kinds of neural networks are made to recall. Finally, the outputted music and the original are compared by two methods. As a result, it turns out that the neurons which have data inputted at random have a big influence on the network. Time series which repeats the same flow can also be recalled using these networks. And caotic neural network can recall arraged music.