16*16点阵循环显示8个汉字，有背景MIDI音乐输出，有一个键盘控制音乐的选择，还附带乐曲弹奏功能。有比较详细的注解。-16* 16 dot matrix display cycle of 8 Chinese characters, with background MIDI music output, there is a keyboard to control the choice of music, but also with music playing capabilities. Mor