Sound and light dual-control eight-way lantern with 12 music sound circuit (BH-SH-II)

The circuit is shown in the figure. It consists of a voice-controlled electronic switch, a light-controlled switch, a music sound circuit, an audio power amplifier circuit, a multivibrator, a timing distribution circuit, an audio control switch circuit, a thyristor drive circuit and an AC step-down rectifier circuit. While this circuit plays world-famous music, the eight-way colored lights glow and flash synchronously with the music, creating a brilliant and ever-changing light.