The Köchel Catalog, first published by Breitkopf & Härtel in 1862, was the first thematic scholarly catalog of the works of a major composer and has since served as the model for most thematic catalogs, marking a milestone in music history. The Köchel Catalog was substantially revised in 1905, 1937, and 1964, with each revision reflecting the enormous progress of generations of Mozart scholars. But new results regarding composition dates required adaptation of numbers to reflect chronology. This led to complications from one edition to the next. This problem has been overcome in the 2024 edition that, for all authentic works, goes back to the earliest number they ever had in the main body of the catalog. Consequently, 95 new numbers could be assigned to compositions which had never had a number in the main body of the catalog so far, starting from KV 627.
The results of the 2024 revision are now online.
KV Digital, including both KV Online ↗ and KV Index ↗, will be a gateway to all digital Mozart resources at the Internationale Stiftung Mozarteum, created and hosted there with support of the Packard Humanities Institute. As of today, only core data (such as titles, dates, scoring) are fully available and will be continuousely expanded. Please visit us regularly to see how the digital version of the Köchel Catalog develops over time!
