Sound files copy on a Mac

Hi @dankraus, not really an issue but you asked how to copy on a Mac.  
I created a bash script that does the following if you run it from your `Padawan_R2_sounds` directory in the terminal.

```
ls *.mp3 |  sort -n > files.txt
while read p; do
    cp "${p}" /Volumes/R2D2_SOUNDS/
done <files.txt
rm files.txt
rm -rf /Volumes/R2D2_SOUNDS/.*
```