In any library one can find information on the subject of the overtone series. Pictures are taken of this phenomenon, and one can see such plates in any reference book on the subject. If you divide again the result is a perfect fifth. The purpose of the opus was to enable the keyboardist to circle all the musical keys of traditional music. Rather than the redundancy of the repetition of only one key being played repeatedly, now all the sounds of all musical keys can be enjoyed.
Mechanical instruments are slightly out of tune with themselves.
To the ears of the Lord they are noise. Therefore, we conclude that the human voice is positively precious - not purchasable. The following illustration may help. Suddenly in a drunken rage, Tommy began to pour his drink over the priceless violin and at that moment Tommy's father walked into the room. God created a musical instrument for man with which to sing praises to the Almighty.