1 Cubism was invented around 1907 in Paris by Pablo Picasso and Georges Braque. 2  Cubism was the first abstract style of modern art. 3  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time. 4  The Cubists introduced collage into painting.
Two linear systems using the same set of variables are equivalent if each of the equations in the second system can be derived algebraically from the equations in the first system, and vice versa.
What Are Enharmonic Equivalents? In a nutshell, the term enharmonic equivalent means notes that sound the same as one another but are named or âspelledâ differently (and this concept can also be extended to include intervals and scales). The musical alphabet consists of seven main notes represented by seven letters: A-B-C-D-E-F-G.