Chen Zhi has released a beginner's guitar method (including video), called: 古典吉他基础教程(Classical guitar foundation course) www.dt-yx.com en.wikipedia.org It is interesting, that the video shows numerous beginners (followed by more advanced students) playing, so encouraging other people who intend to learn with the book and video, in a positive way. The method itself has numerous small units, each of which treats "a scale (...) and some musical works (folk songs, etc.)" in a specific key. (C, G, D, etc) Chen Zhi teaches at the "Central Conservatory of Music" in China and has taught such well-known students such as Xuefei Yang (杨雪霏), Li Jie (李潔), Wang Yameng (王雅梦), Su Meng (苏萌), Chen Shanshan (陈姗姗). Chen Zhi uses a metronome while students are playing (www.jhu.edu