My guqin silk strings were tuned relative to B-flat on the thickest 1st string. In the pictures below, you can see the wired clip of the tuner connected to the bridge of the guqin.
I encountered a very unfamiliar symbol (circled in red color) in the score of the piece which I am teaching myself: 流水 Liu Shui. This symbol can be seen near the end of section 2. After posting a request for help, the most probable answer was: it should be 荡漾 (pinyin: dang yang), like ripples, it sort of feels like a 'nao' vibrato but is exerted toward the left. (Special thanks to Miss 黎励 a guqin maestro in China for her help!)
I only managed to work through until the end of section 2 of this piece. At this point, I have not memorized until the end of section 2 yet.I have only memorized the 1st line of the entire piece. *smile*