| Digest Nr | Subject and Author |
|---|
 |
| 2020.02.02.07 | Coin Accumulator " Explained", from Austin Matlow |
| 2017.06.15.01 | Artrio-Angelus System Explained By Jim Elfers, from Gary Watkins |
| 2017.06.10.03 | Artrio-Angelus System Explained By Jim Elfers, from Jim Miller |
| 2015.10.31.02 | Wurlitzer Duplex Roll Mechanism Explained, from Matthew Caulfield |
| 2005.01.08.05 | MIDI Explained in Piano Roll Terms - Software, from Tony Decap |
| 2005.01.08.04 | MIDI Explained in Piano Roll Terms, from Dan Wilson, London |
| 2005.01.08.03 | MIDI Explained in Piano Roll Terms, from Andy LaTorre |
| 2005.01.08.02 | MIDI Explained in Piano Roll Terms, from John Haskey |
| 2005.01.07.04 | MIDI Explained in Piano Roll Terms, from Craig Smith |
| 2005.01.06.07 | MIDI Explained in Piano Roll Terms, from Tony Decap |
| 2001.02.12.06 | Music Roll Scanner Design Explained, from Richard Stibbons |
| 2000.10.29.03 | Pianolas and Electric Expression Pianos Explained, from Douglas Henderson |
|
