One or two later bars consist of odd numbers of quavers. There are of course questions of what a bar is and in particular its relationship with the phrase. In this case there is one strong beat in each phrase, always at the beginning, followed by a varying number of weaker beats of varying intensity. It seems fair to conclude that here at least bar and phrase are coterminous. The general statement holds good, however, for most genres of Han music.
Most operas are in one, two or four four time.
Folk song is virtually all in two four or four four and the same may be said of much, but by no means all, narrative song. The more interesting question is how the beats are divided up. Rhythm Syncopation is obvious even on the most superficial listening. Syncopation also carries over from bar to bar in some pieces. The fourteenth bar is quaver, crochet, quaver.