Denis Condon (1933-2012) trained at the Sydney Conservatory and became a music teacher and educator. He developed an interest in the reproducing player piano when his father purchased an Ampico piano when Denis was fifteen. Over the next sixty years he amassed a collection of over 7500 piano rolls and ten instruments. From his home he hosted social evenings every two months where rolls were played for the assembled guests.
The noted Australian composer and pianist, Larry Sitsky, is also the author of The Classical Reproducing Piano Roll: A Catalogue Index. This comprehensive rollography represents years of work documenting all known reproducing piano rolls of classical music ever issued. In compiling this listing, he acquired photocopies of rare piano roll catalogs consisting of about 250 volumes. In addition, he collected another 80 volumes of original catalogs.