- Johann Strauss's Godmother Anna Köppel
- The Chess Master Karl Hamppe: a Short Biography
- About Arthur Kaufmann
- At the Grave of Adolf Schwarz
- A Concert Report in the Diary of Carl Ludwig Costenoble
- The Death of Chess Master Julius Perlis
- The Will of Carl Ferdinand Pohl
- A Donizetti Discovery
- The Rediscovery of Carl Czerny's original Will
- The Cellist Wenzel Himmelbauer and his Genealogical Background
- Two Seals of Joseph Haydn
- An unknown Letter by Aloisia Lange
- The Seal of Emanuel Schikaneder
The list is not complete. For obvious reasons some topics of research cannot be revealed in advance.
Questions and inquiries submitted via e-mail cost time to be answered. And because time is not free, requests can only be answered if they come with a donation.