Anton Cajetan Adigasser contributed to all the major genres of Salzburg music of the mid-eighteenth century: his output includes masses, requiems, litanies, vespers services,offertories, Marian antiphons, hymns, and German sacred songs, as we ll as numerous compositions for the Salzburg stage and several instrumental works. Adlgasser's activity as a composer marks him as one of the most important Salzburg predecessors of Wolfgang Amadeus Mozart and Johann Michael Haydn. This publication will c ontain detailed information on the sources for every known work by this composer. An introductory essay will include abiographical study and a discussion of the issues of authenticity and chronology. Tay will include abiographical study and a discussion of the issues of authenticity and chronology. This catalogue will contribute to a clearer understanding of the sources of this music. It will