Articles
Traditional music of China  
A small introduction written by Ingo Stoevesandt
   
Playing the GuZheng  
Inspirations for the great Chinese zither, written by Ingo Stoevesandt
 
Playing the Pipa  
A short manual for Beginners in Chinese lute playing, written by Ingo Stoevesandt
 
Music of Bamboo, Silk and Stone  
An overview of Chinese music reception written by Ingo Stoevesandt

The zithers of SE-Asia  
An overview written by Ingo Stoevesandt

http://www.medieval.org/music/world/china.html  
A good overview article written by T.M. McComb