A musical rhythmic chair is provided with a loudspeaker on the back of the chair body, and at least one undulator is installed in the cushion of the chair body.A sound control host includes a control unit, a music receiving interface, a sound source output channel and a sound source signal to amplitude converter.After a sound source signal is received through the music receiving interface of the audio control host, it is sent to the speaker through the sound source output channel, which sends out music. At the same time, the sound source signal is sent to the amplitude converter through the sound source signal to generate a pair of driving signals corresponding to the signal strength of the sound source, and then sent to the undulator through the wave signal output channel, which generates a driving signal according to the sound. The fluctuation of different intensity of the source signal.一種音樂律動椅，係在一椅體的椅背設置一喇叭，在該椅體的椅墊中安裝至少一波動器。一音控主機包括一控制單元、一音樂接收介面、一音源輸出通道、一音源信號至振幅轉換器。一音源信號通過該音控主機的該音樂接收介面接收後，由該音源輸出通道送至該喇叭，由該喇叭發出音樂，同時該音源信號通過該音源信號至振幅轉換器後產生一對應該音源信號強度的驅動信號，再通過該波動信號輸出通道送至該波動器，由該波動器產生依據該音源信號的不同強度的波動。
