Idea about 'Progress' image

I think its just the side of a gold cube.

the reason its tilted 45 degrees is to emphasize that its NOT a letter.

You 'progress' through the game by collecting cube bits and assembling cubes ( 8 cube bits per cube)

the song is 256 seconds long.

an 8 bit value can hold 256 different values

This supports my theory about the soundtrack images and what they are.

I plan on writing another dump on the soundtrack images soon. I've learned a lot about them this past year.