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.
Fork
The introduction of the fork to Western Europe, according to theologian and cardinal Peter Damian, was by Theophano Sklereina, wife of Holy Roman Emperor Otto II, who at an Imperial banquet in 972 nonchalantly produced one, astonishing her Western guests. By the 11th century, the table fork had become increasingly prevalent in the Italian peninsula before other European regions because of historical ties with Byzantium and, as pasta became a greater part of the Italian diet, continued to gain popularity, displacing the long wooden spike formerly used since the forks three spikes proved better suited to gathering the noodles. By the 14th century the table fork had become commonplace in Italy, and by 1600 was almost universal among the merchant and upper classes. It was proper for a guest to arrive with his own fork and spoon enclosed in a box called a "cadena"; this usage was introduced to the French court with Catherine de' Medici's entourage.
Although in Portugal forks were first used around 1450 by Infanta Beatrice, Duchess of Viseu, King Manuel I of Portugal's mother, only by the 16th century, when they had become part of Italian etiquette, did forks enter into common use in Southern Europe, gaining some currency in Spain, and gradually spreading to France. The rest of Europe did not adopt the fork until the 18th century.