It depends on the exact field you're referring to (you categorized this under Arts, which is a bit confusing), but one answer could be resonance.
Answer:
While slavery was the major issue separating the North and South, it was not slavery itself that sparked the conflict. The South wanted to secede from the Union, and the North refused. While President Abraham Lincoln personally opposed slavery, he recognized that it was legal under the U.S. Constitution at the time. He also recognized that few in the North were ready to go to war to free the slaves. For Lincoln and the northern majority, preservation of the Union was the foremost goal.
Gil Evans worked a lot with Ryo Kawasaki, a jazz fusion and guitarist from Tokyo. They did several concerts in the United States and in Europe. They also collaborated on several albums such as "Gil Evans Orchestra Tokyo Concert feat. Ryo Kawasaki". Ryo Kawasaki was in fact replacing Jimi Hendrix, because Gil Evans had originally intended to do an album with Hendrix but Hendrix died prematurely.
