I've just come across the cover of the Mylo Xyloto tour program (https://merchbar.imgix.net/product/34/239/fxamcol54057/COL54057.JPG) and noticed the 14 symbols down the side. I then realised that each one represents a song on a track list of the album with some unreleased songs in place of the final track listing.

 

1 - Mylo Xyloto

2 -

3 - Charlie Brown

4 - Paradise

5 - Car Kids

6 -

7 - Every Teardrop Is A Waterfall

8 - Major Minus

9 -

10 -

11 - Up in Flames

12 - A Hopefull Transmission

13 - Don't Let It Break Your Heart

14 - Up with the Birds

not quite, CK doesnt exactly represent Car Kids, or its a double meaning. Its supposed to perfectly represent the track on the album only instrumentals included

 

I think they just changed the MMIX and A Hopeful Transmission Symbols positions and Paradise and Charlie Brown's symbols positions. Also UFO and Princess of China.