"China White" is a term used for diacetylmorphine (heroin) that has been cut with a potent synthetic opioid called a-Methylfentanyl, which is a derivative of the potent synthetic opioid fentanyl. a-Methylfentanyl is not quite as potent as fentanyl (which is 100 times more potent than morphine) but it is longer acting causing it to be favored in long-term illicit opioid users because of both its potency and longer high. a-Methylfentanyl is between six and ten times as potent as heroin making it a very dangerous drug when used by people who have no, or very little, tolerance to opioids and is responsible for a considerable number of overdoses among occasional, recreational heroin users.
Ron Carter and Regina Carter are famous jazz musicians (upright bass and violin, respectively).