《雙鶴聽泉》好像是琴曲《猿鶴雙清》的引子(待考察),最早紀錄於明代萬曆年間(1573-1672)的《文會堂琴譜》(明胡文煥於1596年編)。(從網上抄的)
Two cranes listening to the flowing stream is (apparently) the prelude to the guqin piece “Two clarities of the Ape and the Crane” (?), and was earliest recorded in the Wenhuitang Collection of Guqin Scores, compiled by Hu Wenhuan in 1596. (baidu & wiki)
Here are some relevant and interesting ancient records describing the intent of the piece, as well as how we should play it:
「水中鷗鷺,山中野鶴,或息栖於汀州或怡情於泉石,唯不受世人樊籠之苦,是以無憂無慮,無驚無恐,逍遙自適於山水中也。噫!浮生若夢,為歡幾何,士不得志則山林而已矣,雖貧賤,何傷。」
——《一峰園琴譜》(清)禹祥年(康熙四十八年,1709)
“(Look at the) river gulls and herons, the wild cranes in the mountains. They may reside on islets or roam by the streams, but never will they be caged by mortal sufferings. Unfettered and unrestrained, they wander in the mountains fearless and unperturbed. Oh! For the fleeting life is nothing but a dream, how many joyous moments can we have? If my aspirations are left unseen and unacknowledged, then I would rather live in the mountain wilderness. So what if it brings me a poor and humble life!”
——– Yifengyuan Scores for the Guqin, by Yu Xiangnian (1709)
「《聽泉》短曲耳,宽转平和,音節大雅,静夜以中音奏之,何异置身磴间,聆山溜清韵洗涤。」
——《指法汇参琴谱》(清)王仲舒(道光元年,1821)
“‘Flowing stream’ is a short piece that starts broad and turns calm and harmonious. The notes are akin to the music of the Major Court Hymns (1). When played in a balanced tone (2) in the middle of a quiet night, it is as though one is seated by the mountain steps, cleansed by the clear charms of trickling streamlets.”
——– A Study of Guqin Fingerings and Playing Techniques, by Wang Zhongshu (1852)
(1) the Major Court Hymes, or Daya (大雅), refers to one of the six chapters in the Book of Songs (詩經), the earliest collection of poetries in ancient China. The music and poems of the Daya chapter is recognised as a very elegant, pure, and sophisticated genre, so by alluding this piece to the music of Daya, that is a very high form of compliment.
(2) Yes i think 中音 here refers to a balanced tone (中和之音) instead of the music pitch i.e. alto range.