“…We now turn to the aspect of grouping in music whereby the listener divides sequences of tones into coherent subsequences that are separated by temporal boundaries. It is generally agreed that sequences in Western tonal music are represented by the listener as tonal-temporal hierarchies-notes combine to form motives, which in turn combine to form phrases, which in turn combine to form phrase groups, and so on until the level of the entire piece is reached (Deutsch & Feroe, 1981;Meyer, 1956Meyer, , 1973Lerdahl & Jackendoff, 1983;Narmour, 1990Narmour, , 1999Salzer, 1962;Schenker, 1956Schenker, , 1973Temperley, 2001;Thomson, 1999). The division of the musical surface into hierarchically organized chunks confers enormous processing advantages, as discussed in detail in Chapter 7.…”