One of the most salient attributes that we remember about a song is its pitches. Researchers in the psychology of music have spent a good deal of time in showing the extent and characteristics of memory for both isolated pitches, and pitches heard in the context of a tune. For instance, Deutsch (1970, 1972) has shown that memory for a single pitch is more disrupted under some circumstances (presentation of similar pitches during a retention interval) than others (presentation of dissimilar pitches or spoken numbers). Krurnbansl (1979) has shown that memory for a single pitch within a tune is affected by whether the tune is tonal (pitches all drawn from the same key) or atonal (pitches drawn from different keys.)