From the music we listened to, which of the works is in ritornello form? All of these Handel - "Ev'ry Valley" Vivaldi - "Spring", mvt. 1 Bach - "Brandenburg no. 5'', mvt. 1

The work that is in ritornello form from the options provided is Vivaldi's "Spring", mvt. 1. Ritornello form is a musical structure commonly used in the Baroque period, characterized by a recurring theme (the ritornello) played by the full ensemble, alternating with contrasting episodes played by soloists. Vivaldi frequently employed this form in his concertos, including "Spring" from "The Four Seasons."