| Digest Nr | Subject and Author |
|---|
 |
| 2009.01.21.01 | Racca Piano Melodico Expertise, from Walter Tenten |
| 2009.01.20.01 | Racca Piano Melodico Expertise, from John Farmer |
| 2009.01.18.04 | Need Racca Piano Melodico Expertise, from Michael Woolf |
| 2008.08.06.05 | Seek Mills Violano Expertise, from Michael Woolf |
| 1999.11.23.16 | Seeburg Orchestrion Expertise, from John Rutoskey |
| 1998.04.13.02 | Expertise on 'Antique Road Show', from Larry Smith |
| 1997.02.08.07 | Communicating Expertise and Critical Adjustments, from John A. Tuttle |
|
