|  
             The next stage is to modify the boxwood's natural yellow color 
              to an appropriate shade of orange or brown, depending on the model 
              (for ebony and exotic woods, we skip this part). For this process 
              Cathy is suited up like the brain surgeon she might have become 
              had she not been a flutemaker, not to protect the flute from germs 
              but to protect herself from nitric acid and its fumes. Then the 
              pieces will be soaked in a warm bath of raw linseed oil for several 
              days. After the oil is dry, we drill the embouchure and toneholes 
              in the tube sections, and fit the keys. 
           | 
           | 
            |