2 tries left Vivaldi's "Winter" feels complete and unified because it ends each solo and ritornello section in the key of F minor it begins and ends in the key of F minor it begins in the key of F minor and ends in F major all ritornello sections are in the key of F minor

Vivaldi's "Winter" from "The Four Seasons" is a fascinating exploration of contrasting moods and dynamics, and its key choices significantly contribute to its overall unity. The concerto's structure masterfully weaves between different sections, creating a conversation between the soloist and the orchestra, which enhances the emotional impact of the piece. In the context of Baroque music, the use of key modulation and consistent thematic material was a revolutionary approach. Vivaldi's ingenuity shines through in how he employs the winter chill metaphorically through biting harmonies and brisk tempos, painting a vivid picture of the season while maintaining a coherent structure throughout the concerto.