| Digest Nr | Subject and Author |
|---|
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| 2018.04.09.04 | Seek Rolls and Information for Aeolian Concertola, from Freddy Heyse |
| 2015.07.09.04 | For Trade: Duo-Art Concertola Parts, from Bruce Grimes |
| 2012.12.04.05 | Duo-Art Concertola Music Roll Changer, from Bob Taylor |
| 2012.12.03.06 | FS: 1930 Weber Duo-Art with Concertola Changer, from Larry Norman |
| 2012.08.11.05 | Aeolian Duo-Art Concertola Music Roll Changer, from Lester Wolff |
| 2012.08.11.04 | Aeolian Duo-Art Concertola Music Roll Changer, from Jim Crank |
| 2012.08.11.03 | Aeolian Concertola vs. Wurlitzer Roll Changer, from Joe Orens |
| 2012.08.10.02 | Aeolian Concertola vs. Wurlitzer Roll Changer, from Jim Heyworth |
| 2012.08.10.01 | Aeolian Concertola vs. Wurlitzer Roll Changer, from Dale F. Rowe |
| 2012.08.09.02 | Aeolian Concertola vs. Wurlitzer Roll Changer, from Dave Krall |
| 2010.02.24.03 | Praise for the Aeolian Concertola Roll Changer, from Paul Morris |
| 2010.02.19.06 | 58-note Rolls for Aeolian Concertola?, from Jim Crank |
| 2010.02.18.04 | 58-note Rolls for Aeolian Concertola?, from Paul Morris |
| 2010.02.17.02 | 58-note Rolls for Aeolian Concertola?, from Stuart McCaskill |
| 2008.02.01.10 | Duo-Art Concertola Remote Roll Changer, from Richard Friedman |
| 2008.01.31.12 | Duo-Art Concertola Remote Roll Changer, from Brad Hunter |
| 2007.02.05.02 | Duo-Art Concertola Automatic Tempo System, from Jim Crank |
| 2007.02.04.03 | Value of Steck Duo-Art Concertola Grand, from Joe Orens |
| 2007.01.31.06 | Duo-Art Piano Concertola, from Jim Heyworth |
| 2007.01.30.07 | Value of Steck Duo-Art Concertola Grand, from Fred Scoles |
| 2006.06.22.06 | Directions for Operating the Duo-Art Concertola, from Bruce Grimes |
| 2006.03.08.09 | Restoring Aeolian Concertola Roll Changer, from Jim Heyworth |
| 2006.03.07.08 | Restoring Aeolian Concertola Roll Changer, from Ron Schmuck |
| 2003.06.21.09 | Duo-Art Piano Concertola Drawings, from Jim Heyworth |
| 2003.06.20.10 | FS: Aeolian 176-note Duo-Art Organ Concertola, from Rick Cooley |
| 2003.06.19.08 | Seek Duo-Art Piano Concertola Wiring Data, from Bob Taylor |
| 2000.11.06.14 | Aeolian Concertola Roll Changer in UK, from Paul Camps |
| 2000.11.03.01 | Aeolian Concertola Roll Changer, from Bob Taylor |
| 2000.02.04.06 | Duo-Art Concertola Automatic Tempo System, from Bob Taylor |
| 2000.02.04.05 | Duo-Art Concertola Automatic Tempo System, from Jim Heyworth |
| 2000.02.03.04 | Duo-Art Concertola Automatic Tempo System, from Jim Crank |
| 1999.03.21.16 | FS: Duo-Art Concertola on eBay, from Darrell Clarke |
| 1998.03.06.10 | Concertola Roll-Speed Setting Mechanism, from Jim Heyworth |
| 1997.08.12.10 | Seek Duo-Art Concertola Information, from Larry Broadmoore |
| 1997.05.11.25 | WTB: Ampico SPinet and Duo-Art Concertola, from Bill Boulton |
| 1997.01.19.14 | Concertola Information, from Jim Heyworth |
| 1995.11.29.07 | Concertola and Midi, from Robbie Rhodes |
| 1995.11.28.07 | Concertola and MIDI Again!, from Jim Heyworth |
| 1995.11.24.02 | MIDI for Concertola (ref digest 95.11.22), from Robbie Rhodes |
| 1995.11.22.03 | The Concertola Connection, from Jim Heyworth |
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