American qin player/scholar John Thompson advocates for both silk + nylon-wrapped metal strings for different styles of qin music (much like classical (nylon-string) and steel-string guitar music).
Six of the seven songs in "Qin Show" use silk strings created using ancient techniques discovered only a year ago, thus maintaining historical accuracy in its timbre. The last song of the album uses steel strings to provide comparison to the sound of the
Most extensive English website dedicated to the qin, an absolute goldmine for its history, theory, literature, and more, by an accomplished qin player renowned for his dedicated reconstructions of the earliest surviving qin repertoire.