Add new files to itunes playlist

Hi. This is a pretty basic question, apologies, but I have googled for ages and can’t work it out!

I want a script that whenever I add folders of music files to a certain folder it adds the music files from the folders or subfolders to itunes and then to a playlist called ‘New Music’. I have made a script that adds the files to itunes, but I can’t work out how to add them to the playlist. I assume it is a simple command that i need to add to the below, but I can’t seem to find it.

on adding folder items to this_folder after receiving these_items
	tell application "iTunes"
		launch
	end tell
	repeat with i in these_items
		if folder of (info for i) is true then
			tell application "Finder" to set folder_items to every item of i
			process_folder(folder_items)
		else
			tell application "iTunes"
				try
					add i
				end try
			end tell
		end if
	end repeat
end adding folder items to

on process_folder(the_items)
	repeat with j in the_items
		set j to j as alias
		if folder of (info for j) is true then
			tell application "Finder" to set folder_items to every item of j
			process_folder(folder_items)
		else
			tell application "iTunes"
				try
					add j
				end try
			end tell
		end if
	end repeat
end process_folder

Hi,

just look into the dictionary of iTunes, add has an optional to parameter

ADD
add (verb)add one or more files to a playlist (from iTunes Suite)

FUNCTION SYNTAX
set theResult to add {alias, …} ¬
to insertion location

RESULT
trackreference to added track(s)


.
 tell application "iTunes"
               try
                   add i to playlist "New Music"
               end try
           end tell
.

Many thanks Stefan