Answer: Octave
Explanation: An interval that spans eight notes which is double the frequency is called an Octave.
East Sussex England
hope that helps
In opera, the libretto is the words or lyrics, as distinct from the music.
It is a fixture that you see every day in plumbers' shop windows. Whether Mr Mutt with his own hands made the fountain has no importance. He CHOSE it. He took an ordinary article of life, placed it so that its useful significance disappeared under the new title and point of view – created a new thought for that object.
