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Infants, like adults and many animals, move with rhythmic gestures that express motive states and changes of emotion and mood. But the communications of babies have a special creativity and message power. Infants are ready at birth to take turns in a “dialogue” of movements with a loving parent. They are attracted to extended engagement with human gestures, and sympathetic to many emotions — resonating to the impulses and qualities of movement; imitating, seeking to play an active part in proto-conversations or playful duets of agency (Trevarthen, 1999). When the expressive forms are examined in detail, infant and partner are found to be sharing a subtle “musicality” of communication (Malloch, 1999). Very soon the early musical games become the habits or conventions of a mini-culture, improvised creations of meaning for each pair, of the kind that Maya Gratier calls a “proto-habitus” (Gratier, 2007). They become treasured memories of a special relationship.
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Colwyn Trevarthen (2008) studied this question.
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