This "classic" ska style was of bars made up of four triplets but was characterized by a guitar chop on the off beat—known as an upstroke or 'skank'—with horns taking the lead and often following the off-beat skank and piano emphasizing the bass line and, again, playing the skank. Drums kept time and the bass drum was accented on the third beat of each four-triplet phrase. The snare would play side stick and accent the third beat of each 4-triplet phrase. The upstroke sound can also be found in other Caribbean forms of music, such as mento and calypso. Ernest Ranglin asserted that the difference between R&B and ska beats is that the former goes ""chink"-ka" and the latter goes "ka-"chink"".