古琴作为中国最古老的民族乐器之一,有着悠久的历史和丰富的音乐史料。因古琴琴材的差异性,使得琴音出现苍老、清亮、浑厚、圆润、古朴、清灵诸说,而琴的“四善”(苍、松、脆、滑)、“九德”(奇、古、透、润、静、圆、匀、清、芳)则是前人对古琴琴材及音韵的总结。古琴音色各具千秋,是古琴音乐魅力之一。正如《梦溪笔谈》所言:“以琴言之,虽皆清实,其间有声重者,有声轻者,材中自有五音。”(1)古琴琴材通常以桐木为主,面桐底梓最为常 Guqin, one of the oldest national musical instruments in China, has a long history and rich musical history. Due to the difference of the Guqin musical instruments, the sounds of the piano appear old, clear, vigorous, mellow, simple and clear, “(Odd, ancient, through, run, static, round, uniform, clear, Fang) is the predecessors of ancient guqin music and rhyme summary. Guqin sound of different ages, is one of the charm of Guqin music. As ”Meng Xi Bi Tan,“ said: ”to Qin words, although all clear, during which there is a heavy voice, light, material in its own pentameter." (1) Guqin wood is usually dominated by Paulownia, Faced Tong Zi most common