The "Romantic" Sound in Four Pianos of Chopin's Era,
19th Century Music, Vol. III No. 2, pp. 150-153, November, 1979
The "Romantic" Sound in Four Pianos of Chopin's Era,
19th Century Music, Vol. III No. 2, pp. 150-153, November, 1979
The Big Bang,
The Piano Quarterly, p. 33, Summer, 1984
Two Nineteenth-Century Grand Pianos,(co-authored with Lynn Edwards, President, Westfield Center for Early Keyboard Studies),
Early Keyboard Studies Newsletter, Vol. I No. 4, pp. 1, 2 September, 1985
A Katholnig Grand Piano from c.1805-1810,
Early Keyboard Studies Newsletter,Vol. III No.2, p. 11 March, 1987
English vs. Viennese Fortepianos,
Westfield Center for Early Keyboard Studies' Conference and Festival of Recitals: Haydn's Piano Sonatas,
March 29-April 1, 1990, Smith College, Northampton, MA
One of three essays in Conference Program Booklet, pp. 13-17
Encyclopedia of Keyboard Instruments, Vol. I, The Piano
Edited by Robert Palmieri, 1994, New York & London: Garland Publishing, Inc.
Three articles: Erard, Sébastien (et frères), pp. 125-126; Fortepiano, p. 137; The Viennese Piano, pp. 427-429
The Pianos Available to Schubert,
The American Schubert Institute Journal,Premiere Issue, pp. 19-20, January 31, 1997
Attuned to Pianos: An instrument restorer's beautiful obsession,
Lydialyle Gibson, Harvard Magazine, March-April 2023
Living Pianos of Ashburnham: The Frederick Collection,
Ömer Eğecioğlu, Musical Opinion Quarterly, July-September 2021, Issue 1528, pp.24-30
The Frederick Collection of Historic Pianos: An Interview With Patricia and Michael Frederick,
Ömer Eğecioğlu, AKOB, 2021, Issue 60, pp.8-17
Visiting the Frederick Historical Piano Collection,
Mark Kroll, Early Music America, Winter, 2007, Vol.13, No. 4, pp.33-36
The Frederick Collection of Historical Pianos, Benita Meshulam, Clavier Magazine, December, 2005, Vol.44, No. 10, pp.10-13; and in the same issue, reviews of three CDs of music played on pianos from the Frederick Collection, by Phillippa Kiraly, pp.20-21
Piano forte: Couple's Lifelong Passion and Collection Turn Old Library into a Grand Playground, Nathan Cobb,
The Boston Globe, Saturday, May 10, 2003
Where Old Pianos Go to Live: Massachusetts Petting Zoo for 19th-Century Instruments, Anthony Tommasini,
The New York Times, Thursday, November 22, 2001
Keys to the Past: The Frederick Historical Grand Piano Collection,
Barbara Mellin, editor,
Arts Around Boston, Vol. 2, No. 3, Sept./Oct. 1999, p.12-13
The Frederick Collection, Andrew Margrave, RPT, PTG
Northern Virginia Music Teachers Assn. Newsletter
A two-installment article, Aug. and Sept. 1999 issues
Edmund Frederick: Pianos, (from the series, Time Machines: Part III, Private Collections), Mark Longaker,
Early Music America, Vol. 4, No. 4, Winter, 1998-1999 p. 27
The Frederick Collection, Andrew Margrave, RPT, PTG,
The Nova Soundboard, Official Publication of the Northern Virginia Chapter, Piano Technicians Guild, Sept. 1998, pp.1-2
Historical Piano Tour, Helena Thomas,
Piano Technicians Journal, Feb. 1985, pp. 32-33