Visual analysis of lyrical repetition with self-similar matrices

lyrical_repetition.rb

# Based on https://colinmorris.github.io/SongSim/#/about/intro
# inspired by https://www.youtube.com/watch?v=HzzmqUoQobc
MAX_HEIGHT       = 900
MIN_LUMINOSITY   = 0.35  # b/c the background is black, making it difficult to see dark colours
REMOVE_STOPWORDS = false # cut down on size by removing spammy low-quality words
EXPLORE_MODE     = true  # add crosshairs and the current word
SONG             =
                   # 'BAA_BAA_BLACK_SHEEP'
                   # 'CALL_ME_MAYBE'
                   # 'RUMOUR_HAS_IT'
                   # 'LEAN_ON'
                   # '212'
                   'AINT_NO_SUNSHINE'
                   # 'BEAST_OF_BURDEN'
                   # 'TEST' # need to turn off stopwords to see this one

# find the song
songs = DATA.read.split(/^(?=\S)/)
                 .map { |s| [s.lines.first.chomp, s.lines.drop(1).join(' ')] }
                 .to_h
song  = songs.fetch SONG
words = song.downcase.split(/[ \t\n,?.]+/m).reject(&:empty?)

# maybe remove stopwords?
stopwords = %w[a am an and as be but by do I if in it no of on or that the to we].map(&:downcase)
words.reject! { |word| stopwords.include? word } if REMOVE_STOPWORDS

# build the matrix
matrix = words.map { Array.new words.length, nil }
words.each_with_index do |wordx, x|
  words.each_with_index do |wordy, y|
    next unless wordx == wordy
    matrix[y][x] = wordx
  end
end

# map words to colours
colours = {
  background: [0]*3,  # black
  crosshairs: [50]*3, # brighter than bg, not as bright as word colours
}
words.uniq.each do |word|
  loop do
    hash      = rand 256**3
    red       = (hash / 256**2) % 256
    green     = (hash / 256**1) % 256
    blue      = (hash / 256**0) % 256
    luminance = 0.299*red + 0.587*green + 0.114*blue # https://stackoverflow.com/questions/596216/formula-to-determine-brightness-of-rgb-color
    colour    = [red, green, blue]
    next if luminance < MIN_LUMINOSITY || colours.values.include?(colour)
    break colours[word] = colour
  end
end

# draw it
require 'graphics'
cell_size = MAX_HEIGHT / words.length
cell_size = 1 if cell_size < 1
drawing   = Graphics::Simulation.new cell_size*words.length, cell_size*words.length, 24
drawing.color.default_proc = -> h, k { k }

# 1, 2, and 3 to change how fast you move
stride = 1
drawing.add_keydown_handler("1") { stride =  1 }
drawing.add_keydown_handler("2") { stride =  5 }
drawing.add_keydown_handler("3") { stride = 20 }

# vim keybindings move the crosshairs, return and space move diagonally
col = row = 0
{ h:    -> { col -= stride },
  l:    -> { col += stride },
  j:    -> { row += stride },
  k:    -> { row -= stride },
  " ":  -> { col -= stride; row -= stride },
  "\r": -> { col += stride; row += stride },
}.each do |key, block|
  drawing.add_keydown_handler key.to_s do
    block.call
    col %= words.length
    row %= words.length
  end
end

# helpers
define_method(:index_word)   { |index| matrix[index][index] }
define_method(:index_colour) { |index| colours[index_word index] }

define_method :mix_colours do |*colours|
  colours.transpose.map { |cs| cs.reduce(:+) / cs.length }
end

define_method :draw_cell do |y, x, colour|
  x_start = x*cell_size
  y_start = drawing.h - y.succ*cell_size - 1 # start from top instead of bottom
  drawing.rect x_start, y_start, cell_size, cell_size, colour, :fill
end

# draw it!
drawing.define_singleton_method :draw do |n; words|
  clear colours[:background]

  EXPLORE_MODE and matrix.length.times do |i|
    draw_cell i, col, mix_colours(index_colour(col), colours[:background])
    draw_cell row, i, mix_colours(index_colour(row), colours[:background])
  end

  matrix.each_with_index do |row, y|
    row.each_with_index do |word, x|
      draw_cell y, x, colours[word] if word
    end
  end

  EXPLORE_MODE and begin
    text index_word(row), 50, 100, index_colour(row)
    text index_word(col), 50,  60, index_colour(col)
  end
end

drawing.run
__END__
BAA_BAA_BLACK_SHEEP
  Baa, baa, black sheep,
  Have you any wool?
  Yes sir, yes sir,
  Three bags full;
  One for the master,
  And one for the dame,
  And one for the little boy
  Who lives down the lane.

CALL_ME_MAYBE
  I threw a wish in the well,
  Don't ask me, I'll never tell
  I looked to you as it fell,
  And now you're in my way
  I'd trade my soul for a wish,
  Pennies and dimes for a kiss
  I wasn't looking for this,
  But now you're in my way
  Your stare was holdin',
  Ripped jeans, skin was showin'
  Hot night, wind was blowin'
  Where you think you're going, baby?
  Hey, I just met you,
  And this is crazy,
  But here's my number,
  So call me, maybe!
  It's hard to look right
  At you baby,
  But here's my number,
  So call me, maybe!
  Hey, I just met you,
  And this is crazy,
  But here's my number,
  So call me, maybe!
  And all the other boys,
  Try to chase me,
  But here's my number,
  So call me, maybe!
  You took your time with the call,
  I took no time with the fall
  You gave me nothing at all,
  But still, you're in my way
  I beg, and borrow and steal
  At first sight and it's real
  I didn't know I would feel it,
  But it's in my way
  Your stare was holdin',
  Ripped jeans, skin was showin'
  Hot night, wind was blowin'
  Where you think you're going, baby?
  Hey, I just met you,
  And this is crazy,
  But here's my number,
  So call me, maybe!
  It's hard to look right
  At you baby,
  But here's my number,
  So call me, maybe!
  Hey, I just met you,
  And this is crazy,
  But here's my number,
  So call me, maybe!
  And all the other boys,
  Try to chase me,
  But here's my number,
  So call me, maybe!
  Before you came into my life
  I missed you so bad
  I missed you so bad
  I missed you so, so bad
  Before you came into my life
  I missed you so bad
  And you should know that
  I missed you so, so bad (bad, bad)
  It's hard to look right
  At you baby,
  But here's my number,
  So call me, maybe!
  Hey, I just met you,
  And this is crazy,
  But here's my number,
  So call me, maybe!
  And all the other boys,
  Try to chase me,
  But here's my number,
  So call me, maybe!
  Before you came into my life
  I missed you so bad
  I missed you so bad
  I missed you so, so bad
  Before you came into my life
  I missed you so bad
  And you should know that
  So call me, maybe!

RUMOUR_HAS_IT
  She, she ain't real
  She ain't gonna be able to love you like I will
  She is a stranger
  You and I have history
  Or don't you remember
  Sure, she's got it all
  But, baby, is that really what you want
  Bless your soul, you've got your head in the clouds
  You made a fool out of you
  And, boy, she's bringing you down
  She made your heart melt
  But you're cold to the core
  Now rumor has it she ain't got your love anymore
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  She is half your age
  But I'm guessing that's the reason that you stayed
  I heard you've been missing me
  You've been telling people things that you shouldn't be
  Like when we creep out and she ain't around
  Haven't you heard the rumors
  Bless your soul, you've got your head in the clouds
  You made a fool out of me
  And, boy, you're bringing me down
  You made my heart melt, yet I'm cold to the core
  But rumor has it I'm the one you're leaving her for
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  Rumor has it, ooh
  All of these words whispered in my ear
  Tell a story that I cannot bear to hear
  Just 'cause I said it, it don't mean that I meant it
  People say crazy things
  Just 'cause I said it, don't mean that I meant it
  Just 'cause you heard it
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh,
  Rumor has it, ooh
  But rumor has it he's the one I'm leaving you for

LEAN_ON
  Do you recall, not long ago
  We would walk on the sidewalk
  Innocent, remember?
  All we did was care for each other
  But the night was warm
  We were bold and young
  All around the wind blows
  We would only hold on to let go
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on
  What will we do when we get old?
  Will we walk down the same road?
  Will you be there by my side?
  Standing strong as the waves roll over
  When the nights are long
  Longing for you to come home
  All around the wind blows
  We would only hold on to let go
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on
  All we need is somebody to lean on
  All we need is somebody to lean on
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on
  Blow a kiss, fire a gun
  We need someone to lean on
  Blow a kiss, fire a gun
  All we need is somebody to lean on

212
  Hey, I can be the answer
  I'm ready to dance when the vamp up
  And when I hit that dip get your camera
  You can see I been that bitch since the pamper
  And that I am that young sis the beacon
  The bitch who wants to compete and
  I can freak a fit that pump with the peep and
  You know what your bitch become when her weave in
  I just wanna sip that punch with your peeps and
  Sit in that lunch if you're treatin'
  Kick it with the bitch who comes from Parisian
  She know where I get mine from and the season
  Now she wanna lick my plum in the evenin'
  And fit that tongue tongue d-deep in
  I guess that cunt gettin' eaten
  I guess that cunt gettin' eaten
  I guess that cunt gettin' eaten
  I guess that cunt gettin' eaten
  I guess that cunt gettin'...

  I was in the 212
  On the uptown A
  Nigga you know what's up
  Or don't you?
  Word to who made ya
  I'm a rude bitch nigga
  What are you made up of?
  I'm a eat your food up boo
  I could bust your 8
  I'm a do one too
  Fuck you gone do?
  I want you to make bucks
  I'm a look right nigga
  Bet you do want to fuck
  Fuck em like you do want to cum
  Your gay to get discovered in my 2 1 deuce
  Cock-a-lickin' in the water by the blue bayou
  Caught the warm goo
  In your doo-rag too son?
  Nigga you're a kool-aid dude
  Plus your bitch might lick it
  Wonder who let you come to 1 2
  With your doo-doo crew son
  Fuck, are you into, huh?
  Niggas better ohh run-run
  You could get shot homie
  If you do want to put your guns up
  Tell your crew don't front
  I'm a hoodlum nigga
  You know you were too once
  Bitch I'm 'bout to blew up too
  I'm the one today
  I'm the new shit boo
  Young Rapunzel
  Who are you bitch, new lunch?
  I'm a ruin you cunt
  I'm a ruin you cunt
  I'm a ruin you cunt
  I'm a ruin you cunt

  A-yo, A-yo,
  I heard you ridin' with the same tall, tall tale
  Tellin' em you made some
  Sayin' you runnin' but you ain't goin' no where
  Why you procrastinate girl?
  You got a lot but you just waste all yourself
  They'll forget your name soon
  And won't nobody be to blame but yourself, yeah

  What you gone do when I appear?
  W-when I premier?
  Bitch the end of your life are near
  This shit been mine, mine
  What you gone do when I appear?
  W-when I premier?
  Bitch the end of your life are near
  This shit been mine, mine

  Bitch I'm in the 212
  With the 5th cocked nigga
  It's the 2 1 zoo
  Fuck you gone do
  When your goons sprayed up
  Bet his bitch won't get em
  Betcha you won't do much
  See even if you do want to bust
  Your bitch'll get you cut and touch your crew up too
  Pop you playin' with your butter
  Like your boo won't chew
  Cock the gun too
  Where you do eat poon hun
  I'm fuckin' with your cutie-q
  What's your dick like homie?
  What are you into?
  What's the run dude?
  Where do you wake up?
  Tell your bitch keep hatin'
  I'm a new one too, huh?
  See I remember you when you were
  The young new face but you do like to
  Slumber don't you?
  Now your boo up too hun
  I'm a ruin you cunt

  What you gone do when I appear?
  W-when I premier?
  Bitch the end of your lives are near
  This shit been mine, mine
  What you gone do when I appear?
  W-when I premier?
  Bitch the end of your lives are near
  This shit been mine, mine
  This shit been mine, mine
  This shit been mine, mine

AINT_NO_SUNSHINE
  Ain't no sunshine when she's gone
  It's not warm when she's away
  Ain't no sunshine when she's gone
  And she's always gone too long
  Anytime she goes away

  Wonder this time where she's gone
  Wonder if she's gone to stay
  Ain't no sunshine when she's gone
  And this house just ain't no home
  Anytime she goes away

  And I know, I know, I know, I know,
  I know, I know, I know, I know, I know
  I know, I know, I know, I know, I know
  I know, I know, I know, I know, I know
  I know, I know, I know, I know, I know
  I know, I know,
  Hey, I oughtta leave young thing alone
  But ain't no sunshine when she's gone

  Ain't no sunshine when she's gone
  Only darkness every day
  Ain't no sunshine when she's gone
  And this house just ain't no home
  Anytime she goes away
  Anytime she goes away
  Anytime she goes away
  Anytime she goes away

BEAST_OF_BURDEN
  I'll never be your beast of burden
  My back is broad but it's a hurting
  All I want is for you to make love to me

  I'll never be your beast of burden
  I've walked for miles my feet are hurting
  All I want is for you to make love to me

  Am I hard enough
  Am I rough enough
  Am I rich enough
  I'm not too blind to see

  I'll never be your beast of burden
  So let's go home and draw the curtains
  Music on the radio
  Come on baby make sweet love to me

  Am I hard enough
  Am I rough enough
  Am I rich enough
  I'm not too blind to see

  Oh little sister

  Pretty, pretty, pretty, pretty, girl
  Pretty, pretty
  Such a pretty, pretty, pretty girl
  Come on baby please, please, please

  I'll tell you you can put me out on the street
  Put me out with no shoes on my feet
  But, put me out, put me out
  Put me out of misery

  Yeah, all your sickness I can suck it up
  Throw it all at me I can shrug it off
  There's one thing baby that I don't understand
  You keep on telling me I ain't your kind of man

  Ain't I rough enough, oh honey
  Ain't I tough enough
  Ain't I rich enough in love enough
  Oh please

  I'll never be your beast of burden
  I'll never be your beast of burden
  Never, never, never, never, never, never, never be

  I'll never be your beast of burden
  I've walked for miles my feet are hurting
  All I want is for you to make love to me

  I'll never be your beast of burden
  I'll never be your beast of burden
  Never, never, never, never, never, never, never be

TEST
  a b c
	1 2 3
	a b c
  4 a 6
  a b c