Rhythm meaning - Rhythm and blues

The establishment of a basic beat requires the perception of a regular sequence of distinct short-duration pulses and, as a subjective perception of loudness is relative to background noise levels, a pulse must decay to silence before the next occurs if it is to be really distinct.

Many of these hit records were issued on new independent record labels, such as founded 1942 , founded 1943 , founded 1945 , founded 1946 , founded 1947 , and founded 1948.