Nineteen copies of the first edition survive today. Of these, the most valuable is the (Bach's personal copy of the published score), discovered in 1974 in Strasbourg by the French musicologist Olivier Alain and now kept in the Bibliothèque nationale de France, Paris. This copy includes printing corrections made by the composer and additional music in the form of fourteen canons on the Goldberg ground (see below). The nineteen printed copies provide virtually the only information available to modern editors trying to reconstruct Bach's intent, as the autograph (handwritten) score has not survived. A handwritten copy of just the aria is found in the 1725 Notebook for Anna Magdalena Bach. Christoph Wolff suggests on the basis of handwriting evidence that Anna Magdalena copied the aria from the autograph score around 1740; it appears on two pages previously left blank.
Nineteen copies of the first edition survive today. Of these, the most valuable is the (Bach's personal copy of the published scor.e), discovered in 1974 in Strasbourg by the French musicologist Olivier Alain and now kept in the Bibliot?hèque nationale de France, Paris. This copy includes printing corrections made by the composer and additional music in the form of fourteen canons on the Goldberg ground (see below). The nineteen printed copies provide virtually the only inform!ation available to? modern editors trying to reconstruct Bach's intent, as the autograph (handwritten) score has not survived. A handwritten copy of just the aria is found in the 1725 Notebook for Anna Magdalena Bach. Christoph Wolff suggests on the basis of handwriting evidence that Anna Magdalena copied the aria from the autograph score around 1740; it appears on two pages previously left blank.