Sunday, November 30

Musicophilia + Flatland

   A couple of book reviews...

   1. "Musicophilia: Tales of Music and the Brain" by Oliver Sacks
     <http://www.amazon.com/Musicophilia/dp/1400033535>

   In this book, British neurologist Oliver Sacks writes about the way our
   brains respond to music.  The word "musicophilia" refers to the
   propensity of humans towards music.  The author argues that this feeling
   for music is central to every culture, and goes back to the beginnings
   of the species.

   Topics covered include:
   * earworms (those tunes you can't get out of your head)
   * musical hallucinations
   * synesthesia (e.g. seeing specific colours when hearing notes)
   * amusia (the inability to recognise musical tones or rhythms)
   * absolute pitch
   * savants

   The essays or "tales" revolve around case studies, drawn from patients
   with various forms of brain disorders, conditions and trauma, such as
   amnesia, strokes, dementia, partial lobotomies, autism, Tourette's and
   William's syndromes.  These cases provide clues to how both damaged and
   healthy brains respond to music.

   The therapeutic and other benefits of music are also discussed.  Music
   can not only enhance or improve the listener's mood, it can also
   "awaken" consciousness.  Sacks wrote an earlier book, "Awakenings"
   about cases where patients were brought back from "frozen" states,
   and this book inspired a movie of the same name.

   One amusing anecdote tells how musical rhythm actually aids peoples' co-
   ordination, say when they're drunk: they can dance quite well when the
   music is thumping, but when the music stops, they stumble around or fall
   down.

   There are also many anecdotes about famous people and music: composers
   (e.g. Mozart, Bach, Chopin, Mahler and Wagner), authors (Twain, Proust,
   Nabakov), and philosophers (St Augustine, Freud, Nietzsche).

   Overall, this was a fascinating collection of essays.  The style, using
   lots of case studies and anecdotes, makes it very readable.  There is
   some jargon, but it is only used when necessary.  Many of the cases are
   quite touching.  A great read for people interested in music.


   2. "Flatland: A Romance of Many Dimensions" by Edwin A. Abbott
     <http://www.amazon.com/Flatland/dp/014043531X>

   This short novel describes an imaginary two-dimensional world, Flatland,
   populated by beings that are actually geometrical objects (lines,
   triangles, squares and other polygons).

   In part one our narrator, "A. Square", describes the history, customs,
   and workings of Flatland.  For example, triangles are the lowest class
   of males, and provides the soldiers and workmen.  Equilateral triangles
   (those having sides of equal length) form the "middle" class. Only these
   can improve the status of their descendants: their offspring will gain a
   side to become a square.  Squares comprise the "professional men and
   gentlemen" of Flatland.  Each successive generation of males having
   sides of equal length gains an additional side, until eventually the
   "perfect" state of a circle is achieved.

   In part two our narrator encounters a stranger, a Sphere, and is
   introduced to the Third Dimension.  This is where the real story
   happens.  At first the Square finds it difficult to accept what the
   Sphere is trying to tell him about "Spaceland".  But eventually, through
   a series of demonstrations and arguments, the Square accepts the
   existence of the Third Dimension.  When he returns to Flatland, he wants
   to tell everyone about what he has discovered.  But there's a problem:
   any discussion of the Third Dimension has been outlawed and is
   punishable by death, so he must proceed with caution.

   There are metaphysical elements in the novel, such as when the Square
   extrapolates what he's learnt about moving from two to three dimensions,
   and speculates about a fourth and higher dimensions.

   Note that the use of the word "romance" in the title is used to denote a
   fantasy rather than a love story.  The novel reflects and responds to
   the Victorian times in which it was written.  Feminists will deplore the
   status of women in Flatland.

   An enjoyable read, particularly for people with an interest in
   mathematical concepts.  But anyone with a basic grasp of geometry should
   be able to follow the story.  It may make you better understand what you
   think you already know.