For my photo project At Work, I visited the workshop of master organ builder Mathias Mebold in Siegen-Breitenbach. Instrument making is always fascinating for me, but organ building is special as there are so many different materials to work with: metal for the pipes, leather for the bellows and wood for the organ itself. For the portrait, we chose the tuning of the pipes. At the end there even was a little time left for some still lifes of tools.