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.
Wand
Wands were introduced into the occult via the 1200s latin grimoire The Oathbound Book of Honorius. The wand idea from the Book of Honorius, along with various other ideas from that grimoire, were later incorporated into the 1500s grimoire The Key of Solomon. The Key of Solomon became popular among occultists for hundreds of years. In 1888, there was the publication of an English translation of the Key of Solomon by Samuel Mathers (one of the co-founders of the Hermetic Order of the Golden Dawn), which made the text of the Key of Solomon available to the anglophone world. That 1888 English version inspired Gerald Gardner- the creator of Wicca, to incorporate the wand and various other ritual objects into Wicca.