So what does a piano technician do? The typical piano has over 9,000 different individual parts. It's actually as complicated as an automobile! Piano technicians are like musical mechanics, making sure every part of the whole piano's "engine" (the action) is working perfectly. A wonderful documentary, "Pianomania" follows the work of master Steinway piano technician Stephan, as he works with pianists such as Alfred Brendel, Lang Lang, and others to prepare pianos for upcoming recordings and concerts. Check out the trailer below!