The Anna Magdalena Bach Book of 1725 is a heterogeneous collection of virtuosic and profound keyboard suites, light and often insipid dances, and a number of sacred songs whose dominant theme is death. This striking juxtaposition of the sacred and secular is hardly lessened by the fact that the songs are written in a disarmingly fashionable style which at first seems incommensurate with the existential issues addressed by the poetry. While scholars have generally seen the notebook’s less demanding pieces, including the songs, as a testament to Anna Magdalena’s taste for the galant style, little has been said about her apparent penchant for reflecting on and preparing for death through the medium of her personal musical notebook. By reading these poetic texts and their musical settings against the voluminous writings on the art of dying to be found in the family’s theological library, this essay argues for the centrality of the ars moriendi in the Bachs’ domestic life and in their music-making.