| Digest Nr | Subject and Author |
|---|
 |
| 2016.02.07.02 | "Chicago Coin Piano Industry" in AMICA Bulletin, from Glenn Thomas |
| 2015.12.11.02 | "Chicago Coin Piano Industry" in AMICA Bulletin, from Glenn Thomas |
| 2009.03.21.04 | Music Rolls with Words - An American Industry, from Bill Chapman |
| 2009.03.20.03 | Music Rolls with Words - An American Industry, from John A. Tuttle |
| 2008.12.31.03 | The Ivory Industry in England, from Keith Reedman |
| 2008.12.30.05 | The Ivory Industry in Ivoryton, Connecticut, from Robbie Rhodes |
| 2003.03.19.02 | 1999 Trade Commission Study of Piano Industry, from Julian Dyer |
| 2000.08.10.02 | New Technology Upsets the Music Industry, from Robbie Rhodes |
| 1999.12.15.03 | Austrian Music Box Industry of the 19th Century, from Robbie Rhodes |
| 1999.07.01.11 | Glues in Industry, from John Lanphere |
| 1999.01.17.09 | American Piano Industry 1960's to 1981, from Craig Brougher |
| 1999.01.16.12 | American Piano Industry 1960's to 1981, from Don Teach |
| 1999.01.13.15 | Tonal Quality & The Piano Industry, from John A. Tuttle |
|
