| Digest Nr | Subject and Author |
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| 2025.04.21.01 | 30 Years -- Many Happy Returns!, from Jochen Schäfer |
| 2025.04.20.01 | Happy 30th Anniversary MMD, from Nancy Fratti |
| 2025.04.17.01 | Happy 30th Anniversary MMD, from John McClelland |
| 2024.06.10.02 | " Happy Days Are Here Again" Atlas 3975 Phil Lynch, from Piotr Barcz |
| 2024.06.09.04 | " Happy Days Are Here Again" Atlas 3975 Phil Lynch, from Samuel Stroud |
| 2024.06.06.01 | " Happy Days Are Here Again" Atlas 3975 Phil Lynch, from Piotr Barcz |
| 2024.02.18.01 | " Happy Days Are Here Again" Atlas 3975, from Piotr Barcz |
| 2024.01.02.01 | Happy Public Domain Day 2024!, from Bob Pinsker |
| 2023.01.01.01 | Happy Public Domain Day 2023, from Bob Pinsker |
| 2022.01.01.01 | Happy Public Domain Day 2022!, from Bob Pinsker |
| 2021.01.02.01 | Happy New Year and Happy Public Domain Day 2021, from Bob Pinsker |
| 2021.01.02.01 | Happy New Year and Happy Public Domain Day 2021, from Bob Pinsker |
| 2020.05.16.03 | Happy 25th Birthday to Mechanical Music Digest, from Nancy Fratti |
| 2020.05.16.02 | Happy 25th Birthday to Mechanical Music Digest, from Angelo Rulli |
| 2020.05.16.01 | Happy 25th Birthday to Mechanical Music Digest, from Terry Smythe |
| 2020.05.15.01 | Happy 25th Birthday to Mechanical Music Digest, from Matthew Caulfield |
| 2019.11.28.02 | Happy Thanksgiving Day, from Mike Perry |
| 2019.01.01.01 | Happy New Year and Happy Public Domain Day 2019, from Bob Pinsker |
| 2019.01.01.01 | Happy New Year and Happy Public Domain Day 2019, from Bob Pinsker |
| 2018.12.31.01 | Happy New Year!, from Nancy Fratti |
| 2017.01.02.01 | Happy Musical New Year, from Francoise Dussour |
| 2015.09.24.03 | " Happy Birthday" Copyright Claims Ruled Invalid, from Matthew Caulfield |
| 2015.09.23.02 | " Happy Birthday" Copyright Claims Ruled Invalid, from Robbie Rhodes |
| 2014.03.02.01 | Happy Birthday, Duo-Art!, from Rex Lawson |
| 2014.01.01.02 | Happy New Year, from Nancy Fratti |
| 2013.08.23.04 | Happy 100th Birthday, Aeolian Opus 1280, from Bob Taylor |
| 2013.01.01.01 | Happy New Year & 25 Years of Jaeger & Brommer, from Wolfgang Brommer |
| 2012.01.02.01 | Happy New Year To All, from Ricky Diggs |
| 2011.12.31.02 | Happy New Year to MMD, from Eliyahu Shahar |
| 2011.12.24.01 | Happy Holidays, from Daniel Fenner |
| 2011.01.01.01 | Happy New Year 2011, from Wolfgang Brommer |
| 2010.03.31.03 | Happy Mastertouch Pianolist Playing on YouTube, from Glenn Amer |
| 2010.01.06.02 | Happy New Year, from Andy Adams |
| 2008.12.08.04 | FS: Happy Cow Music 88-note Player Piano Rolls, from Stephen Simpson |
| 2007.06.10.07 | FS: 88-note Piano Rolls from Happy Cow Music, from Stephen Simpson |
| 2007.01.08.01 | Happy New Year, from Renaissance Le Corbeau |
| 2007.01.01.01 | Happy New Year 2007!, from Hans van Oost |
| 2006.12.29.03 | Happy New Year!, from Marc Goodman |
| 2006.12.20.01 | Happy Holidays To All MMD Readers, from Eliyahu Shahar |
| 2004.07.15.01 | New 88-note Piano Rolls by Happy Cow Music, from Stephen Simpson |
| 2004.05.21.01 | Happy 100th Birthday Welte-Mignon!, from Mark Reinhart |
| 2003.03.11.01 | Seek " Happy Birthday" for 20-Note Celestina, from Todd Augsburger |
| 2000.12.31.03 | Happy New Millennium, from Hal Davis |
| 2000.12.31.02 | Happy New Year, from Mike Knapp |
| 2000.12.24.03 | Happy Holidays, from Dave Fogle |
| 1998.12.24.01 | Happy Holidays, from Larry Greenfield |
| 1998.11.24.04 | Happy Birthday, Robbie!, from Joyce Brite |
| 1998.04.22.08 | ' Happy Birthday' Song Copyright, from Gary Rasmussen |
| 1998.04.20.15 | ' Happy Birthday' Song Copyright, from Larry Smith |
| 1998.04.17.09 | ' Happy Birthday' Song Copyright Renewed, from Gary Jones |
| 1998.04.10.01 | Vrolijk Pasen and Happy Easter!, from Hans van Oost |
| 1998.02.05.03 | ' Happy Days Are Here Again' by Milton Ager, from Matthew Caulfield |
| 1998.01.11.01 | Happy New Year to All, from Robin Pratt |
| 1997.04.03.01 | Happy Birthday, Mechanical Music Digest, from Claus Kucher |
| 1996.04.18.03 | Happy Anniversary, from Beatrice Robertson |
| 1995.12.21.01 | Happy Holidays from the Southern Hemisphere, from Michael Woolf |
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