本文作者创新点是基于FPGA完成乐曲演奏电路，在Altera Quartus II 环境下，用VHDL 语言实现电子琴演奏音乐的设计实例，设计者根据VHDL的语法规则，对系统的逻辑行为进行描述，然后通过综合工具进行电路结构的综合、编译、优化，用仿真，可在短时间内设计出高效、稳定、符合设计要求的电路。-This innovation is the author of music to play based on FPGA to complete the circuit, the Altera Quartus II environment, using VHDL language keyboard to play music, design examples, the designer according to grammatical rules of VHDL, the logic behavior of the system descr iption, and then through an integrated tool for integrated circuit structure, compile, optimize, with simulation, can be designed in a short time efficient, stable, consistent with the design requirements of the circuit.