__. There are 100 cents in the interval between one note in a scale and the next. The kicker on this is that the number of Hertz (vibrations per seconds) varies between adjacent notes. So, 1 cent is one percent of the distance between one note and the next but the "true distance" varies based up whether they're low or high notes.

__. Um, this isn't a very good explanation, is it?

There are some sound files illustrating degrees of wetness at the bottom of this web page:

http://www.accordionpage.com/wetdry.html

I looked up on the link to listen to the samples.
There isn't a huge difference. It's very interesting anyhow.