is the principle of organization around a central tone. a. Harmony b. Meter c. Polyphony d. Tonality

Explanation:

The principle of organization around a central tone is called tonality.

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)