True or False? Psych, Music and Neuro Quiz Items From "This Is Your Brain on Music"

• Number of neurons in the human brain?  100,000,000,000, or one hundred billion (p. 87).
• Is pitch processed by hearing systems and then interpreted by the brain? Pitch is represented directly in the brain, unlike almost all other attributes of musical sound (p.29).
• Does Eastern music use microtonal scales? While it's commonly thought that "Eastern" music uses microtonal scales, in fact most cultures don't discriminate differences smaller than a semitone, or half step (p. 28)
• What Pink Floyd song is written in 7/4 time? The Pink Floyd song "Money" is written in the infrequently heard 7/4 meter, great for tripping up some toe-tappers.
• Which popular rock group intentionally changed their tuning away from A440, the usual standard?  Led Zeppelin. 

Source:  This Is Your Brain on Music: Science of a Human Obsession by Daniel J. Levitin (Plume, 2006)

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True or False? Psych, Music and Neuro Quiz Items From "This Is Your Brain on Music"