Cloud atlas was published in 1802. It followed a similar effort in French by Jean-Baptiste Lamarck in 1801. Howard's nomenclature defined four fundamental types of clouds: cirrus or thread-cloud, cumulus or heap-cloud, stratus or flat cloud (level sheet), and nimbus or rain-cloud (see Classification of clouds). There followed a long period of development of the field of meteorology and the classification of clouds, leading up to 1896, the International Year of Clouds. The history of this period is the subject of a popular book, "The Invention of Clouds". During that time, the Englishmen Rev. Clement Ley and Hon. Ralph Abercromby, were influential.
Digital sheet music more on the practice and consumption side of music learning. These latter cloud-based applications integrate audio-output such as playback with a variety of tempi (speeds) and with different instrumentation for multi-part scores and make the viewing and playing more interactive by adding personal annotations, automatic page turning, or set lists. Overall, four factors appear to facilitate digital sheet reading: computer, content, containers and controllers (Hugh, 2013): Digital sheet music Digital sheet music is technology for representing and displaying sheet music in a computer-readable format. With the emergence of several technological innovations, sheet music evolved in several stages into what was