2 Elements:
Color is being used in cooperation with Line to make colors "pop" more. Along with this, it provides and organized, yet visually appealing aesthetic to the art piece.
Color in particular, is what separates the work into sections that draw the viewer's eyes in, due to the contrast choices by the artist.
While Line, physically separates the colors, but provides the attractive composition.
(I would answer principles too, but I don't have the time currently;; Hopefully this helps though.)
Answer:
When an Instrument is created, It gets put into a musical family based on how it is played. If you wanted to make a rubber band an instrument it would most likely be in the string family. If you were to create a new instrument that doesn't use strings, air, force, buzzing air or anything that is used in existing instruments, you would have made a new family.
Explanation:
There are five main instrument families: strings, woodwind, brass, keyboards, and percussion. Musical instruments are grouped into families based on how they make sounds. In an orchestra, musicians sit together in these family groupings. But not every instrument fits neatly into a group. For example, the piano has strings that vibrate, and hammers that strike.