La stravanganza is a set of concertos, op. 4, written by Antonio Vivaldi in 1712–1713. The set was first published in 1716 and was dedicated to a Venetian nobleman Signor Vettor Delfino. All of the concertos were scored for solo violin, strings, and basso continuo; however, some of the movements in the concertos require extra soloists. What is perhaps most extraordinary about "La stravaganza" is Vivaldi's remarkable inventiveness within a defined framework of instrumental and harmonic forces.