Nature gropes and blunders and performs the crudest acts. There is no steady advance upward. There is no design.
Oliver SacksAbout 10 percent of the hearing impaired get musical hallucinations, and about 10 percent of the visually impaired get visual hallucinations.
Oliver SacksThere is no one part of the brain which recognizes or responds emotionally to music. Instead, there are many different parts responding to different aspects of music: to pitch, to frequency, to timbre, to tonal intervals, to consonance, to dissonance, to rhythm, to melodic contour, to harmony.
Oliver Sacks