I boarded the RO-RO carrier M/V AutoBank in Oslo as they finished unloading their shipment of cars. Then we sailed to Bremerhaven, Germany to load again. Here's a short video clip I made with photos and sound from our 24-hour journey.
The sound is from a recording I made as we were pulling up the ramps, winding up the mooring cables, and setting sail from Oslo. The beautiful progression of tone changes is exactly as it happened-- I just abridged it a bunch, taking it from 13 minutes down to 2 minutes.