This script will copy the Artist tag to the Album Artist tag of the selected tracks.
App displays files in iTunes Media folder which are not in iTunes library
Edit tags of stream URL tracks
Remove iTunes tracks disassociated from files
Juxtapose text in Artist tag such that "Ellington, Duke" becomes "Duke Ellington"
Set the Plays of selected tracks.
Update subscriptions which have expired by virtue of being ignored for five or more days