The circuit diagram of the components used: CCIC2851 9013 MMAC94A4 as shown in the figure is a touch-sensitive delayed light circuit using a music IC, it subtly using music storage feature to implement integrated circuit delay control. The enclosed photograph shows the 1min delay time of the data. This circuit can also be using ordinary music IC KKD-9300 series, but the series music IC is generally without an external oscillation resistance, delay time is chip circuit circuit in the fixed die, generally for around 20s.
