Profound deafness may be congenital or acquired, and it is usually considered an unfitting condition to music/sound perception. Deaf people that join an oral tradition (deaf dulture) and use sign language, spontaneously, create peculiar styles to express thoughts in different registers (narrative style, poetry, and so on); moreover, visual language effects contribute to create a visual rhythm usually considered 'music' by deaf people. This fact, together with the inclination of profound deaf people to feel sounds through the tactile perception, leads to define a new notion of musical dimension different from the classical notion based on the hearing perspective.

Keywords:deafness, musical dimension, sign language, deaf culture, sound perception

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