One specific excerpt from this Late Renaissance/ Early Baroque piece by Angelo Poliziano displays many similarities to the other pieces in question.
Moresca Dell'ombra di Euridice Condotta Agl'Inferi: Analysis
Meter: simple duple,or two four, where each measure contains two beats and the lowest subdivision of the beat is a quarter note.
Melody: Polyphonic. All voices and the stringed instrument have equal importance in the piece, and they all sing/play the same rhythms.
Medium: 3 vocalists (one male, two female) and one bowed string instrument, presumably a violin
Form: The piece begins with chorus containing a metzo piano question and answer section, then a second, different but still question and answer section. The chorus is repeated at a sforzando dynamic level. For a third time, the chorus is repeated, this time at a piano dynamic. The chorus trails off into a short solo by one of the female vocalists with an underlying organum played by the stringed instrument.
Style: this is a late Renaissance to early Baroque piece. It begins to show many of the expected qualities of a Baroque opera.
Context: this composition was most likely written by and performed for peasants. It is sung in Italian. One may assume that the composer lived in Florence, which was the hub of musical composition in Italy in the 1600's.