| Digest Nr | Subject and Author |
|---|
 |
| 2023.11.14.01 | " Secrets of Automata" New Book by Michael Start, from Harriet Hurley |
| 2004.01.03.03 | Books & Trade Secrets, from Mark Kinsler |
| 2001.04.09.10 | Craig Brougher's Restoration ' Secrets' at Web Site, from John A. Tuttle |
| 1999.02.05.06 | Secrets of the Organ Tone, from Bill Finch |
| 1999.02.04.02 | Secrets of the Organ Tone, from Hans van Oost |
| 1999.02.04.01 | Secrets of the Organ Tone, from Paul West |
| 1999.02.02.04 | Secrets of the Organ Tone, from Tom McAuley |
| 1997.08.15.05 | Sharing the Secrets of Mechanical Music, from Andy LaTorre |
|
