Processing.org code for the cover of http://8tracks.com/danielrt/50

50.pde

int i, j, gray, ext;
PGraphics n50;
PFont fnt=createFont("HelveticaNeueLTStd-Bd", 54);
color[] c={
  color(171, 154, 16),
  color(248, 223, 23),
  color(185, 173, 73),
  color(248, 238, 159),
  color(120, 108, 11)
};

void setup() {
  size(1440, 1440);
  background(0);
  noStroke();
  n50=createGraphics(90, 90); // raster "50."
  n50.beginDraw();
  n50.background(0);
  n50.fill(255);
  n50.textFont(fnt);
  n50.textAlign(CENTER, TOP);
  n50.text("50.", 45, 40);
  n50.endDraw();
  strokeCap(PROJECT);
  for (i=0; i<90; i++) {
    for (j=0; j<90; j++) {
      gray=round(red(n50.pixels[i+j*n50.width])/16);
      strokeWeight(round(random(gray)));
      stroke(c[floor(random(c.length))], 192+round(random(gray*4))+2);
      ext=round(random(gray));
      line(i*16-ext, j*16-ext, i*16+16+ext, j*16+16+ext);
    }
  }
  save("50.png");
}