add code and requirements files

delete.py

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+from pyItunes import *
+from gmusicapi import Mobileclient
+
+# iTunes songs
+l = Library("<full path to iTunes Music Library.xml>")
+songs = [(song.artist, song.name) for id,song in l.songs.items()]
+
+# Google Music songs
+api = Mobileclient()
+api.login('<account>', '<password>')
+library = api.get_all_songs()
+
+# Find songs to delete
+delete = filter(lambda song: (song['artist'], song['title']) not in songs, library)
+delete = [song['id'] for song in delete]
+
+# Delete songs
+api.delete_songs(delete)

requirements.txt

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+git+git://github.com/liamks/pyitunes.git
+git+git://github.com/simon-weber/Unofficial-Google-Music-API