The chants can be sung by using six-note patterns called hexachords. Gregorian melodies are traditionally written using neumes, an early form of musical notation from which the modern four-line and five-line staff developed. Good luck!!
The level which is the lowest in the human organizational hierarchy is the
a.atomic.
Answer:
Sultanate of Delhi
Explanation:
"the sultans prominently sponsored Islam and helped to establish a secure place for their faith"