 In the first place, the principled reconciliation of information drawn from different sensory sources suggests that audition is governed by extra-auditory perceptual constraints. Moreover, since conflict requires a common subject matter, such constraints must concern common sources of stimulation to multiple senses. If so, audition and vision share a perceptual concern for a common subject matter. And that concern is reflected in the organization of auditory experience. But this by itself does not establish constitutive dependence of audition on another sense.