This creates an alias that points to where you've now put the files.
Log into your Shell account, using PuTTY, or whatever shell software you have.
Use the 'cd' command to go to where your files used to be:
~ is your home directory, then inside your domain directory you have your other directories.
I'd do the ln command a little bit different. sXi's is clearer, but I make my links relative:
ln -s ../newdir/name1.mp3 .
ln is the link (make alias) command
-s makes it symbolic (the nice way to do it)
.. means go up one directory. ../.. would be go up two directories, and so on.
newdir is the new location
name1.mp3 is the file you moved to the new location
. means keep the same file name and put the alias RIGHT HERE (where it used to be)