Question

who was the composer known for alternating music between two groups of voices or instruments?
giovanni gabrieli
lorenzo de medici
tomás luis de victoria
michael praetorius

Explanation:

Giovanni Gabrieli was known for developing the polychoral style which alternates music between two or more groups of voices or instruments. Lorenzo de Medici was a patron of the arts and not primarily a composer. Tomás Luis de Victoria was a Spanish composer with a different musical style. Michael Praetorius was a German composer with his own distinct contributions not mainly related to this alternating - group style.

Answer:

A. Giovanni Gabrieli