Rephotography - Further research

During my research into rephotography, I came across a brilliant article (interactive work) on the website for the McCord Museum in Montreal, Quebec.

http://www.mccord-museum.qc.ca/dq/intro-e.html

When you hover over the images you get a sound bite of how each image would have sounded at the time it was taken.

This website was a great find and leads me to the conclusion that when I shoot my images, they will also both be in black and white because your eye is not immediately drawn to one image over the other therefore each image is contemplated in more detail.