Answer:
Rhythm, melody, harmony, timbre, and texture are the essential aspects of a musical performance.
They put emphasis on using percussion instruments in new and innovating ways.
Artworks are grouped into periods or styles based on similarities that they share, for example a similar time of creation (for example, Medieval), a similar use of technique (for example, pointillism) or similar subject of depiction (for example, portraits).
The definition of line refer is the definition of a reference line. In other words an arbitrary fixed line (as an x-axis or a polar axis) from which coordinates of/from a point are computed or generated