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About the Library of Congress Medium of Performance Thesaurus for Music PDF Files
This page provides print-ready PDF files for the 2026 Edition of the Library of Congress Medium of Performance Terms for Music (LCMPT), as well as PDFs of the instruction sheets for the Medium of Performance Thesaurus Manual. The Manual provides guidelines and instructions for making proposals and for applying medium of performance terms.
Note: The draft status for the instruction sheets was removed in May 2026.
Data for the 2026 edition was selected in May 2026. For users desiring enhanced functionality, LCMPT and the LCMPT Manual will continue as part of LC's web-based subscription product, Classification Web Plus.
Earlier editions are available here but should not be used for cataloging.
Introduction to Library of Congress Medium of Performance Thesaurus for Music
Library of Congress Medium of Performance Thesaurus for Music
Library of Congress Medium of Performance Thesaurus for Music Manual
- M 606 MARC Authority Records for LC Medium of Performance Terms (PDF)
- M 620 When to Establish a New Medium of Performance Term (PDF)
- M 622 Changing a Term or Deleting a Medium of Performance Authority Record (PDF)
- M 625 Deleted Term Information (PDF)
- M 630 Changing References in Authority Records for Mediums of Performance (PDF)
- M 634 Preparation of Medium of Performance Term Proposals (PDF)
- M 638 Authority Research for Medium of Performance Proposals (PDF)
- M 641 Citation of Sources (PDF)
- M 645 History Notes (PDF)
- M 650 Form of Authorized Medium of Performance Term (PDF)
- M 654 Parenthetical Qualifiers (PDFB)
- M 656 Related Term References (PDF)
- M 657 “Used for” References (PDF)
- M 658 Broader Term References (PDF)
- M 660 Scope Notes (PDF)
- Appendix A Abbreviations (PDF)
- Appendix B Capitalization (PDF)
- Appendix C Diacritics and Special Characters (PDF)
- Appendix D Punctuation (PDF)
