| Digest Nr | Subject and Author |
|---|
 |
| 2016.05.27.02 | Seek Scale for Heinrich Voigt Trumpet Organ, from Ron Schmuck |
| 2014.03.11.05 | Henry Burkard & Heinrich Burkhard, from Gerhard Dangel |
| 2013.01.22.03 | Music Box Maker Johann Heinrich Heller, from Lorne Seaton |
| 2005.07.22.02 | "Orgophon" by Julius Heinrich Zimmermann, from Luuk Goldhoorn |
| 2000.02.01.03 | Heinrich Voigt (Voight) Firm of Frankfurt, from Hauke Marxsen |
| 2000.01.05.05 | Heinrich Voigt Firm of Frankfurt, from Matthew Caulfield |
| 1998.08.29.03 | Welte Artist Heinrich Burkhard, from Robbie Rhodes |
|
