2009年,我把自己1983年平反后重回工作岗位的各类文稿整理结集。我想到一直很尊敬的凌青同志,就将书稿寄到北京请他为我把关并作序题写书名。我不知道凌青同志此时身体已经很不好了。凌青同志在医院认真为我写了序文,题写了“不改其乐”书名,让我又喜又愧。想不到,一年之后,我的书还未印出,凌 In 2009, I put together all kinds of manuscripts that I returned to my post after being rehabilitated in 1983. I think of Comrade Ling Qing, who has always respected, sent the manuscript to Beijing asking him to write a title for me as a gatekeeper. I do not know that Comrade Ling Qing was in poor health at this time. Comrade Ling Qing wrote a preface for me seriously in the hospital and inscribed the title of “Do not change his music”, which made me rejoice and ashamed. Can not think, a year later, my book has not printed, Ling