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sound's data license is following https://archive.org/details/AuthorJamesPierpontAdaptedbyNatalieBrownJeremyRwakaaraJingleBells http://creativecommons.org/licenses/by-nc-nd/2.5/ https://archive.org/details/SVFGC_LivingChristmasTree2004 http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ http://www.hermann-uwe.de/blog/10-100-creative-commons-christmas-songs memo http://www.hermann-uwe.de/blog/10-100-creative-commons-christmas-songs
