 Hüttenbrenner died in Ober-Andritz at the age of 73.Of Hüttenbrenner's works in manuscript, some are lost, but the majority remained with his descendants until their 2007 donation to the University Library of the University of Music and Performing Arts in Graz, Austria; they can be examined on site, with all items listed in the University Library's searchable online catalog.His works are considered very rich in melody, somewhat operatic.