The set usually includes 12 drum pads loaded with acapella chops from singers like Azis or Era Istrefi . This lets you trigger "Hajde!" or "Opa!" during a breakdown.
In the Korg community, "F R" often stands for or "Full Real" depending on the programmer. For the Pa 80/20 series, it specifically refers to a custom sound architecture that rearranges the keyboard’s DSP (Digital Signal Processor) to handle: Tallava Set F R Korg Pa 80 20