Guidonian hand
In Medieval music, the Guidonian hand was a mnemonic device used to assist singers in learning to sight-sing. Some form of the device may have been used by Guido of Arezzo, a medieval music theorist who wrote a number of treatises, including one instructing singers in sightreading. The hand occurs in some manuscripts before Guido's time as a tool to find the semitone; it does not have the depicted form until the 12th century. Sigebertus Gemblacensis in 1105–10 did describe Guido using the joints of the hand to aid in teaching his hexachord. The Guidonian hand is closely linked with Guido's new ideas about how to learn music, including the use of hexachords, and the first known Western use of solfege.
Shorthand
Modern-looking geometric shorthand was introduced with John Byrom's "New Universal Shorthand" of 1720. Samuel Taylor published a similar system in 1786, the first English shorthand system to be used all over the English-speaking world. Thomas Gurney published "Brachygraphy" in the mid-18th century. In 1834 in Germany, Franz Xaver Gabelsberger published his Gabelsberger shorthand. Gabelsberger based his shorthand on the shapes used in German cursive handwriting rather than on the geometrical shapes that were common in the English stenographic tradition.
Taylor's system was superseded by Pitman shorthand, first introduced in 1837 by English teacher Sir Isaac Pitman, and improved many times since. Pitman's system has been used all over the English-speaking world and has been adapted to many other languages, including Latin. Pitman's system uses a phonemic orthography. For this reason, it is sometimes known as "phonography", meaning "sound writing" in Greek. One of the reasons this system allows fast transcription is that vowel sounds are optional when only consonants are needed to determine a word. The availability of a full range of vowel symbols, however, makes complete accuracy possible. Isaac's brother Benn Pitman, who lived in Cincinnati, Ohio, was responsible for introducing the method to America. The record for fast writing with Pitman shorthand is 350 wpm during a two-minute test by Nathan Behrin in 1922.