Copy "Artist - Song name" to the clipboard

I usually recommend not manipulating the clipboard via AppleScript - not because it can't be done (it can), but because there are usually better options.

In any case, since I don't know what you're ultimately trying to do...

tell application "iTunes"

if player state is playing then

set TA to artist of (get current track)

set TN to name of (get current track)

set the clipboard toTA & " - " & TN

end if

end tell

The issue is assigning this to a key shortcut, which AppleScript can't do on its own.

You could use FastScripts (free for up to 10 keyboard shortcuts) to assign the script to a key shortcut.

I'm not sure what you're saying here.

I've already provided an example of how to extract the data you want, and I've already explained that AppleScript cannot launch/respond to arbitrary key presses on its own - for that you need some other software.

Try this:

set theInfos to ""

tell application "iTunes"

repeat with thisItem in selection

set theInfos to theInfos & artist of thisItem & " - " & name of thisItem & return

end repeat

end tell

set the clipboard totheInfos