Legal advice to musicians, after "Blurred Lines": pretend you have no influences

It's been two years since Pharrell Williams and Robin Thicke lost a lawsuit brought by Marvin Gaye's descendants, who argued that their song "Blurred Lines" infringed Gay's 1977 song "Got to Give It To You," not because it copied the music per se, but because it copied its "vibe." (more")