Carlton Barrett popularized a form of this musical concept called “one drop.” Forms of this concept that have been the “now” thing include Sleng Teng, Diwali, and Real Rock. A common form of this concept for the“underground style” was inspired by Shabba Ranks after it was embraced by immigrants to Panama. The Jamaican Patois word for this concept names instrumentals frequently used in many different (15[1])times and sung over by a deejay in (*) dancehall. A ubiquitous form (-5[1])of this element in reggaeton is called dembow. In calypso, this musical element is often defined by an instrument first made with industrial cargo containers. Modern reggae (10[1])music often uses the “four on the floor” style of this element, which is also used in disco. For 10 points, name this element of Caribbean music often maintained with steelpans (10[1])and drums. ■END■ (10[1])