A German Requiem (Brahms) the traditional Roman Catholic Requiem Mass, which employs a standardized text in Latin, the text is derived from the German Luther Bible. Brahms's first known use of the title "Ein deutsches Requiem" was in an 1865 letter to Clara Schumann in which he wrote that he intended the piece to be ""eine Art deutsches Requiem"" (a sort of German Requiem). Brahms was quite moved when he found out years later that Robert Schumann had planned a work of the same name. "German" refers primarily to the language rather than the intended audience. Brahms told Carl Martin Reinthaler, director of music
Catalogues of classical compositions For example, Liszt's works are now known only by S numbers, from the catalogue by Humphrey Searle, which superseded that created by Peter Raabe, which used R numbers. Older catalogues are included for historiographic purposes. But there are exceptions to this, such as: The following incomplete list gives details of many of the catalogues and symbols that have been used, and in many cases are still in use. It is in author or composer order, but can be sorted in symbol order. Catalogues of classical compositions This article gives some details of the various catalogues of classical compositions that have