What is the purpose of frets on a guitar or the fingerboard on a violin? in terms of frequency of the vibration of the strings?

Answer the following question in 3-4 sentences. what is the above image of? why was it created

Which statement is true? select one: a. all art created in florence during the renaissance was commissioned by the medici family. b. without wealthy patrons, it is likely that many italian renaissance works would not have been created. c. religion was the driving force behind works created by leonardo and michelangelo. d. the public was responsible for determining whether an artwork was great.

Michelangelo pieta depicts to virgin mary holding the body of jesus christ after he was crucified true or false