Answer:
the beetles were some of the first rock musicians and it quickly took over the world, and rock became a new genre of no longer being I Want To Hold Your Hand to louder and harder noises
Answer:
C.perfect octave
Explanation:
Pythagoras studied the Greek instrument known as the Lyre to find the different sounds produced when you change the length of the strings. He discovered that if the strings are of the same length they produced the same sound but if they were of different lengths they produced different sounds.
If the two strings length are in ratio 1:1 they have the same sound known as perfect unison, if the two strings are in ratio 2:1 the sound is a perfect octave, if two strings length are in ratio 3:2 the sound is a perfect fifth
Preservation: the act of keeping something safe from damage or deterioration
Restoration: To return something to its original state or form
