Symphony, K. 45b (Mozart) even earlier dates to also be possible, and Zaslaw dated the symphony cautiously to Salzburg in 1767. Einstein also believed that the symphonies in the catalogue of Breitkopf & Härtel were sent by Leopold Mozart to be published. The Alte Mozart-Ausgabe (published 1879–1882) gives the numbering sequence 1–41 for the 41 numbered symphonies. The unnumbered symphonies (some, including K. 45b, published in supplements to the Alte-Mozart Ausgabe until 1910) are sometimes given numbers in the range 42 to 56, even though they were written earlier than Mozart's Symphony No. 41 (written in 1788). The symphony K. 45b is given the
Schubert Thematic Catalogue Schubert Thematic Catalogue Schubert: Thematic Catalogue of all his Works in Chronological Order, also known as the Deutsch catalogue, is a numbered list of all compositions by Franz Schubert compiled by Otto Erich Deutsch. Since its first publication in 1951, Deutsch (abbreviated as D or D.) numbers are used for the unique identification of Schubert's compositions. The Deutsch catalogue was first published in London in 1951, as "Schubert: Thematic Catalogue of all his Works in Chronological Order, compiled by O. E. Deutsch, in collaboration with Donald R. Wakeling." In 1978, as part VIII Supplement / Volume 4 of the New