Organum added what to gregorian chants? a. guitar music b. a choir c. a second voice d. lyre accompaniment

The correct answer is :

A second voice

Explanation:

As no genuine independent other voice exists, this is a form of heterophony. In its earliest stages, organum needed two musical voices: a Gregorian chant melody, and the same music transferred by a consonant interim, regularly a complete fifth or fourth.

option c (nickel) is not found in earth's crust. the earth's crust basically contains eight (8) elements namely: oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium (listed in order of abundance).

you didnt add any sort of groups or any options, you can edit it and then people can try to answer now its kinda hard.

hope this gives you a heads up why you arent answered. : d

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