The find man page is full of information, but it can be somewhat painful to consume in one sitting...
Here is an example that does the type of thing you are asking for. To understand it you'll need to look at both the find man page, specifically regarding the '.', -name and -exec (and {} +), and the mv man page for the '-t';
Code:
find . -name '*.mp3' -exec mv -t ~/music {} + ;
If you have questions about the above, please make them specific to show that you did the required reading ;-)
EVo2.
How to find a filename which contain particular pattern and want to move to
