How do I do a selective, recursive copy ? Bash script ?

[Bruno Wolff III]

On Mon, Oct 27, 2008 at 15:26:22 -0400,
  Linuxguy123 <linuxguy123 at gmail.com> wrote:
> I have a huge multi level directory of legally ripped music.   I ripped
> my CDs as flac and mp3.
> 
> How do I easily copy just the mp3 files onto another drive ?  Ie, ignore
> the flac files and copy only the mp3 files ?  I want to keep the
> directory structure intact.
> 
> The main directory is Music.  In Music is BandA, BandB, BandC, etc.
> Inside BandA is Record1, Record2, Record3, etc.
> Inside Record 1 is song1.flac, song1.mp3, song2.flac, song2.mp3, etc.
> 
> I want to preserve the directory structure. I feel a script coming on.
> Am I right ?

Assuming the destination is a flat directory you could do something like:
cp `find music_directory -type f -name '*.mp3'` destination_dir