In particular, there are abundant online resources at present, combined with books and famous online videos (for example, older musicians such as Li Xiangting and Gong Yi have special fingering introductory teaching films) for repeated practice.
It only takes ten minutes to know. After practicing the corresponding fingering of the left and right hands, you can practice etudes, and then short songs, such as harmony. From shallow to deep.
As for genre, don't worry about it. It is common for different musicians to deal with the same piano music in many ways. They can practice any pedigree they think they can. Pingsha geese, plum blossom, agriculture, countryside and farmers all have many scores.
Guqin, after all, is used to cultivate one's self-cultivation, and one is often intoxicated alone. Moreover, Guqin is one of the few or the only musical instruments in the world that has no standard score.
The piano music made by the ancients was played by later generations according to their own understanding of solving problems. Everyone has different views on cultivation and knowledge, and playing music is a thousand people's side.
Self-learners now have audio-visual resources to use, omitting the way of oral assistance in the past, and can learn guqin by their own efforts.