| Digest Nr | Subject and Author |
|---|
 |
| 2020.09.18.02 | Schulmerich Carillon Roll Player Demonstration, from Andy Park |
| 2020.06.19.07 | Ampico B Pump Amplification Demonstration Video, from Ben Gottfried |
| 2015.12.11.03 | Player Piano Demonstration on YouTube, from Craig Smith |
| 2015.01.26.11 | Unknown Tunes on QRS Demonstration Roll, from Ken Vinen |
| 2015.01.26.10 | Unknown Tunes on QRS Demonstration Roll, from Andy Park |
| 2015.01.26.09 | Unknown Tunes on QRS Demonstration Roll, from Tony Liene |
| 2015.01.25.04 | Unknown Tunes on QRS Demonstration Roll, from Dennis Back |
| 2013.06.22.01 | Auto-Typist Demonstration in Movie, from Lee Rothrock |
| 2013.05.03.01 | New Ampico Demonstration Video on YouTube, from Bob Taylor |
| 2012.02.05.02 | Seek Duo-Art Demonstration Roll by Armbruster, from Andre Quier |
| 2009.02.03.05 | Starr Player Piano Co. Demonstration Phono Record, from Jack M. Conway |
| 2008.05.26.03 | Ampico Demonstration on Web Site, from Bob Taylor |
| 2007.10.26.04 | Seek Ampico Demonstration Roll, from John Del Carlo |
| 2006.08.10.01 | Pianola Demonstration Video, from Julian Dyer |
| 2006.04.15.05 | Ampico Concert Demonstration Pianos, from Bruce Clark |
| 2006.03.31.06 | Plating Metal Parts - A Simple Demonstration, from Mark Kinsler |
| 2004.11.24.01 | Duo-Art vs. PianoDisc Demonstration, from Peter Phillips |
| 2004.11.23.11 | Duo-Art vs. PianoDisc Demonstration, from Spencer Chase |
| 2004.11.20.03 | Duo-Art vs. PianoDisc Demonstration, from Brian Thornton |
| 2004.06.18.02 | Duo-Art Demonstration Concert Grand at AMICA Convention, from Spencer Chase |
| 2002.09.14.03 | Seek Ampico Demonstration Rolls, from Tim Tomaselli |
| 2002.03.16.01 | Haarlem Museum "het Kunkelsorgel" Demonstration, from Jan Kees de Ruijter |
| 1999.03.16.12 | Demonstration of Organ Mixture Stops, from Bill Chapman |
| 1998.04.10.16 | Aeolian Teaching Demonstration Roll, from Dan Wilson, London |
| 1998.04.09.13 | Aeolian Teaching Demonstration Roll, from Don Bryant |
| 1998.03.18.14 | QRS Recordo Demonstration Roll, from John Phillips |
| 1998.03.09.09 | Demonstration Rolls, from Douglas Henderson |
| 1998.03.08.09 | Demonstration Rolls, from Peter Coggins |
| 1995.12.14.10 | Duo-Art Demonstration Roll, from Ralph Schack |
|
