4/16 2/16 1/16 1/16 4/16 4/16This represents a 4/4 measure, and fits 6 distinct chords from the phrase (there are 6 durations). The rhythm may change only on a new phrase; in this example, if the number of chords in the phrase is not a multiple of 6, the new phrase will continue with the same rhythm.
In each voice, the notes receive the durations from the rhythm; however, identical notes are "slurred" together. So, in this example, one voice might play:
4/16 3/16 5/16 4/16while another plays:
4/16 2/16 2/16 8/16