Guido of Arezzo
In the 12th century, a development in teaching and learning music in a more efficient manner had arisen. Guido of Arezzo's alleged development of the Guidonian hand, more than a hundred years after his death, allowed for musicians to label a specific joint or fingertip with the gamut (also referred to as the hexachord in the modern era). Using specific joints of the hand and fingertips transformed the way one would learn and memorize solmization syllables. Not only did the Guidonian hand become a standard use in preparing music in the 12th century, its popularity grew more widespread well into the 17th and 18th century. The knowledge and use of the Guidonian hand would allow a musician to simply transpose, identify intervals, and aid in use of notation and the creation of new music. Musicians were able to sing and memorize longer sections of music and counterpoint during performances and the amount of time spent diminished dramatically.
Round hand
Round Hand (also Roundhand) is a type of handwriting and calligraphy originating in England in the 1660s primarily by the writing masters John Ayres and William Banson. Characterised by an open flowing hand (style) and subtle contrast of thick and thin strokes deriving from metal pointed nibs, Round Hand's popularity grew rapidly, becoming codified as a standard, through the publication of printed writing manuals.