Move files in subdir to another dir

Assuming the current directory has the subfolders, replace TARGET_DIR in the following statement in use it:

find . -name '*.mp3' -exec mv {} TARGET_DIR \;

Try this:

 cd ../Music

 for i in `ls -Q`; do  mv $i/* /Path/To/Some/Other/Directory;   done

I would suggest to use cp instead of mv to check whether it is working fine or not. and if it is working fine just delete the ..Music directory

Edit: added -Q (and needed to add this explanation to get beyond six characters)