 According to theories in which sounds are individuals, sounds are not secondary or sensible qualities. But, humans hear audible qualities, such as pitch, loudness, and timbre, that are analogous to colors, tastes, and scents. Thus, familiar accounts of colors and other sensible attributes or secondary qualities might apply to the audible qualities. For instance, pitches might be either dispositions to cause certain kinds of experiences in suitable subjects, the physical or categorical bases of such dispositions, sensations or projected features of auditory experiences, or simple primitive properties of (actual or edenic) sounds.