John Koster discusses the sound of harpsichords in the early part of the 20th Century, in a companion lecture to a concert by Mahan Esfahani.

Wanda Landowska was a Polish keyboardist, composer, and teacher best known for revitalizing harpsichord performance in the twentieth century. Her school at Saint-Leu-la-Forêt, founded in 1925, became one of the great centers for the collection, study, and performance of Baroque music until it was looted by the Nazis in 1940. The collection consists of annotated music, correspondence, business papers, writings, programs, photographs, and other materials that document the legacy of Landowska. These materials largely reflect the activities of Landowska and her pupil, Denise Restout, during their years at Saint-Leu and after their immigration to the United States in 1941.

The Music Treasures Consortium provides online access to the world's most valued music manuscripts and print materials, held at the most renowned music archives, in order to further research and scholarship. The consortium represents an alliance of many libraries with holdings of unique music resources, including music manuscripts, prints, and first and early editions. The Library of Congress is hosting the consortium Web site which gives bibliographic information on each item; access to the digital items is provided through links to the holding library's own Web site.