(noun) a usually rhetorical break in the flow of sound in the middle of a line of verse / (noun) a break in the flow of sound in a verse caused by the ending of a word within a foot / (noun) break interruption / (noun) a pause marking a rhythmic point of division in a melody
In fact, there is a caesura between one piece and the next, but it can only be recognized, or heard, by those who know to listen for it.