Rumba flamenca (and its Barcelona cousin, the rumba catalana) — the flamenco tangos crossed with Cuban son and pop, the sound of Peret, Pescaílla and later the Gipsy Kings. Straight 4/4, party tempo, always over the Andalusian cadence: Am – G – F – E, landing on the Phrygian E.
How it sits: the guitar plays the ventilador ("fan") — a rotating-wrist rasgueo that never stops moving, written as continuous sixteenths: down on the beats and ands, up between, with a palm-muted golpe (x) on 2 and 4 so the strum carries its own backbeat. The cajón slaps 2 and 4 too, with bass tones that lock to the bass guitar: root held from the beat, fifth on the and of the second beat of each chord. Palmas clap the offbeat eighths (contratiempo).
Listen for the golpe and the cajón slap landing together — that shared 2 and 4 is the rumba.
Practice: strum steady sixteenths on one chord, then mute only beats 2 and 4 without breaking the motion.