Conversation so far:
What is organic music for Tan Dun?
Many of Tan Dun's works call for instruments made of materials such as paper, stone, or water, but compositions that he classifies as organic music feature these instruments most prominently.
Did Tan Dun write any organic music
The first major work for organic instruments was his Water Concerto for Water Percussion and Orchestra.
Any other notable organic music works of Tan Dun besides the Water Concerto for Water Percussion and Orchestra?
The techniques devised in the Water Concerto were used again in Tan Dun's Water Passion After St. Matthew.

Question: Did he work with any one else to write these pieces?
Self-contained rewrite: Did Tan Dun work with any one else to write the organic music pieces besides Tan Dun?