Venetian organs of the second half of the sixteenth century and early Seicento largely maintained the specifications of early Renaissance instruments, of which the organs of the ducal basilica were undisputed models. On occasion, however, innovations such as reeds and modern accessories amplified the range of available sound in ways that defy modern concepts of historical performance practice. Placement of instruments shows increasing independence from the choir. Though the organ is increasingly involved in performance practices requiring voices and other instruments, contemporary lofts remain small indeed. Pictorial and architectural ornamentation of organ cases and lofts becomes more complex.