How did the French chanson become the Italian canzona?

The Italian canzona evolved directly from the French polyphonic chanson, a genre of vocal music that was highly influential in Italy during the 16th century, where it was often referred to as canzon(a) francese.1

The transition occurred through the following developments:

• Instrumental Arrangements: Early canzonas were essentially instrumental transcriptions of these French vocal works. These arrangements typically alternated between polyphonic and homophonic (chord-based) sections, maintaining the structural character of the original songs.1
• Stylistic Adaptation: While the vocal chanson relied on text and vocal imitation, the instrumental canzona adopted a distinct opening motif—often characterized by one long note followed by two shorter notes of the same pitch—to establish its identity as an instrumental form.1
• Evolution of Texture: Over time, the canzona diverged into two primary paths. Keyboard canzonas became increasingly polyphonic, eventually influencing the development of the fugue. Meanwhile, ensemble canzonas—notably those by composers like Giovanni Gabrieli—introduced contrasting tempos and rhythms, which paved the way for the trio sonata and the Baroque sonata da chiesa.12