Genre/form headings describe what an item is, rather than what it is about. The Library of Congress has been removing genre/form headings from LCSH and incorporating them into LC Genre/Form Terms (LCGFT) for several years. Big changes are coming for music and literature in the next year, as genre terms are finalized and LC no longer assigns LCSH form headings in these areas. This preconference will explain what these changes will bring to cataloging: new MARC fields for aspects of LCSH headings that are not genre, and new LC vocabularies for medium of performance and demographic terms.