| Digest Nr | Subject and Author |
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| 2017.02.26.08 | Sources of MIDI Decoder Devices, from Robbie Rhodes |
| 2016.08.04.02 | Android Mobile Devices Control Ampico Piano, from Deane Shepard |
| 2011.09.15.10 | Electronic Tuning Devices for Piano Tuning, from Paul Camps |
| 2011.09.10.05 | Electronic Tuning Devices for Piano Tuning, from Rob Goodale |
| 2011.09.10.04 | Electronic Tuning Devices for Piano Tuning, from Paul Camps |
| 2011.09.09.09 | Electronic Tuning Devices for Piano Tuning, from Rob Edwardsen |
| 2011.09.09.08 | Electronic Tuning Devices for Piano Tuning, from Jan Kijlstra |
| 2011.09.09.07 | Electronic Tuning Devices for Piano Tuning, from Bill Maguire |
| 2011.09.08.05 | Electronic Tuning Devices for Piano Tuning, from Don Teach |
| 2011.09.07.04 | Electronic Tuning Devices for Piano Tuning, from John A. Tuttle |
| 2005.05.06.05 | Belts And Power Transmission Devices, from Glen R. Perye, Jr. |
| 2004.02.25.07 | Lock & Cancel Register Control Devices, from Brian Smith |
| 2004.02.01.14 | Grounding Electrical Devices, from Larry Emmons |
| 2004.01.26.10 | Source of Felt for Player Piano Devices, from D. L. Bullock |
| 2004.01.25.11 | Source of Felt for Player Piano Devices, from Larry Emmons |
| 2004.01.24.06 | Seek Felt for Player Piano Devices, from Barry Dennis |
| 2003.07.09.06 | Electronic Tuning Devices for Piano Tuning, from Michael Concordia |
| 2003.07.08.10 | Electronic Tuning Devices for Piano Tuning, from Bill Maguire |
| 2003.07.06.08 | Electronic Tuning Devices & Star Roll Perforator, from Robert Barns |
| 2003.06.08.08 | Electronic Tuning Devices, from John A. Tuttle |
| 2001.04.07.12 | Rebuilding Ampico A Expression Control Devices, from Paul Manganaro |
| 2001.04.04.09 | Rebuilding Ampico A Expression Control Devices, from Bruce Clark |
| 2001.02.12.04 | History of External Piano Player Devices, from Dan Wilson, London |
| 1999.02.05.11 | Aeolian Aeriol and Aeriola Piano Player Devices, from Julian Dyer |
| 1999.02.04.07 | Aeolian Aeriol and Aeriola Piano Player Devices, from Bill Wineburgh |
| 1996.11.14.09 | Re: Public Displays of MM devices in NY State?, from Bob Conant |
| 1996.11.13.03 | Public Displays of MM Devices in NY State?, from Rick Inzero |
| 1996.09.30.01 | Animatronics Player Devices, from Craig Brougher |
| 1996.07.25.05 | Re: MIDI Playback Devices, from George Bogatko |
| 1996.07.23.02 | Re: Connecting MIDI Devices Over Long Distances, from Bill and Dan |
| 1996.07.21.02 | Connecting MIDI Devices Over Long Distances, from Will Dahlgren |
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