Wertheimer, Melissa E.Melissa E. Wertheimer, a Music Reference Specialist in the Library of Congress Music Division, describes her selection, description, and appraisal methodologies for a forthcoming digital collection, the LC Commissioned Composers Web Archive. The presentation includes project challenges as a lone arranger of web archives for the Library of Congress Music Division, project goals, statistics, discussion of a web archiving life cycle model, and methods of appraisal applicable to both web archives and electronic records.en-USappraisalarchivesmusicweb archivesdescriptionelectronic recordsPresentation