Using Applescript to export list of URLs based on

I am new to Applescript, so I found an awesome script online that will list all Evernote snaps that have an associated URL . For listing all snaps with URLs, this solution is great. How could I modify this script to filter the listed URLs based on specific tags?

Script I am currently using: http://veritrope.com/code/save-a-list-of-urls-from-your-evernote-items-as-a-file/

tell application "Evernote"
    activate
    set listOfNotebooks to {}


    set EVNotebooks to every notebook
    repeat with currentNotebook in EVNotebooks
        set currentNotebookName to (the name of currentNotebook)
        copy currentNotebookName to the end of listOfNotebooks
    end repeat

    set Folders_sorted to my simple_sort(listOfNotebooks)


    set SelNotebook to choose from list of Folders_sorted with title "Select Evernote Notebook" with prompt ¬
        "Current Evernote Notebooks" OK button name "OK"
    set EVnotebook to item 1 of SelNotebook
    set listofNotes to {} 
    set note_Records to {}
    set allNotes to every note in notebook EVnotebook
    repeat with currentNote in allNotes
        try
            set currentNoteURL to (the source URL of currentNote)
            set currentNoteTitle to title of currentNote
            if currentNoteURL is not missing value then
                copy currentNoteURL to the end of listofNotes
                copy {name:currentNoteTitle, URL:currentNoteURL} to the end of note_Records
            end if
        end try
    end repeat


    set Notes_sorted to my simple_sort(listofNotes)
    set SelNote to ¬
        choose from list of Notes_sorted with title ¬
            "List Of URLs In Notes" OK button name "Export List" cancel button name "Close Window" with empty selection allowed


    set record_Text to {}
    repeat with note_Record in note_Records
        set theCurrentRecord to ("Title: " & name of note_Record & return & "URL: " & URL of note_Record & return & return) as text
        copy theCurrentRecord to the end of record_Text
    end repeat


    if (SelNote is not false) then
        tell application "System Events"
            -- convert list to text FILE
            set ExportList to "Current List of URLs in Notes for " & EVnotebook & "-- " & (current date) & return & return & record_Text as Unicode text
            set fn to choose file name with prompt "Name this file" default name "URL List for Notebook Named " & EVnotebook & ¬
                ".txt" default location (path to desktop folder)
            set fid to open for access fn with write permission
            write ExportList to fid
            close access fid
        end tell
    else
        set EVnotebook to item 1 of SelNotebook
    end if
end tell

on simple_sort(my_list)
    set the index_list to {}
    set the sorted_list to {}
    repeat (the number of items in my_list) times
        set the low_item to ""
        repeat with i from 1 to (number of items in my_list)
            if i is not in the index_list then
                set this_item to item i of my_list as text
                if the low_item is "" then
                    set the low_item to this_item
                    set the low_item_index to i
                else if this_item comes before the low_item then
                    set the low_item to this_item
                    set the low_item_index to i
                end if
            end if
        end repeat
        set the end of sorted_list to the low_item
        set the end of the index_list to the low_item_index
    end repeat
    return the sorted_list
end simple_sort

Apologies for my code block being funky. If any mods can fix it I'd appreciate the help.

In your repeat with currentNote in allNotes loop you could add something like this:

set allTags to tags of currentNote
repeat with currentTag in allTags           
   if name of currentTag is "your_specific_tag" then
      do what you want
      ...........
   end if
end repeat