I think death day but I’m not sure
A. Solfege is the answer. This is the system of do-re-mi-fa-sol... etc.
Neumes are different notes sung on a syllable.
Tritone describes an interval (distance between 2 pitches) of 3 whole steps.
Organum is an early form of heterophony
Is there any answers to choose from? if not i would say a debit card.
Answer: Oklahoma
Explanation: Is #4 on the list of states with the most tornadoes.