What is music?

A) The speed at which the beat is played.

B) The art of arranging sounds and silence in time

C) A system based on major and minor keys

D) the simultaneous sounding of three or more pitches

B. The art of arranging sounds and silence in time

Explanation:

Music is the combination of melodies, rhythms, and combination of sound instruments.

It is an art of arranging tones and sounds in agreement with time. It involves both voice and musical instrument sounds such as guitar, piano, drums, trumpet, violine, etc.

Music is used to expressones current state of mind such as joy, happiness, sorrow, love war, etc

i would say the answer is b. zigzag lines of the leaves. i believe this is the answer because zigzag lines go in different direction while the other options like: the vertical lines of the trees, the dotted lines on the road, and the curved lines of the park benches go in one direction.

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)