Octavarium - Dream Theater

I chose Octavarium by Dream Theater which is well designed all the way through. I'll post pictures of the different parts of the album.

Title and Tracks

Octavarium was originally supposed to be named Octave but was modified because another group named their album Octane. The numbers 5 and 8 are sprawled across the music and the album. It is their 8th album. The title has 5 consonants, 5 vowels, 5 syllables, -arium has 5 letters, and octave is a musical term for an interval from one note to the same named note, but with double or half the frequency. The album uses a lot of circular motion as well. The octave returns to the same note name from which it started. An octave separates 8 natural notes. There are 5 accidentals. Others have found many more references as well.

There are eight tracks to the album. There are technically 7 gaps between songs, but only 5 of them have transitional music. The entire album is written in a minor key, which is generally regarded as having a sad tone. The first track is in F minor, the second in G, third in A, and so forth until the 8th track which is also in F but one octave higher. Here is the circular motif again. The 5 transitional segments are conveniently placed where the accidentals would go on a piano, and have key signatures with the root of the accidental.
Here is what the songs look like to show how they relate to key (note the similarities with a piano):
____F#_______G#_____A#____________C#_____D#
1.F_____2.G_____3.A____4.B____5.C____6.D____7.E___8.F(octave higher than first F)

There are many references in the songs to 5 and 8, and the durations of the songs have ties to both the repeating numbers and the circular motif.

Cover and Art
Front and Back Cover
-See "Cover" and "Balls"-
There are 8 balls on the complete cover, and 5 black birds, which could represent the black keys on a keyboard. The birds are positioned so that the first ball on the left represents F on the keyboard, which is the exact orientation of the albums key signatures. The last ball would similarly correspond to F. Both of the F balls are in motion. The balls appear to be part of a Newton's Cradle which, in the absence of friction, would repeat the same circular type motion forever.

Inside
-See "boy" and "boy2"-
The boy listening is shown first with the cord hanging to the left. The same boy is later shown with the cord hanging to the right. This could represent the boy relaying information to himself at a previous time. Notice that 5 fingers are shown in the boy2 picture, and 8 fingers are shown in both pictures combined.

-See "dominoes" and "maze"-
The first domino sums to 5, and the second to 8. There are 3 birds, which people have claimed represent the 3 band members that are not in the band anymore. The two flying birds represent the two previous keyboardists and the stationary bird is the previous singer.
The maze shown has a spider trapped in the middle. A spider has eight legs. The spider is in an eight-sided maze with 8 doorways, 8 blocks, and no escape. The maze contains 5 layers.

-See "octopus" and "behind cd"
The octopus obviously has eight tentacles. There are 5 fish in the picture. The stop sign has 8 sides.
The picture behind the CD is an eightball. Also not pictured is part of a piano inside the jacket of the album.

-See "Octavarium jacket"
The final picture is a blueprint a star inside of an octagon (5 sided figure inside of an 8 sided figure). The scale is stated to be 5:8 scale. There are plenty more mathematical games and other references to 5 and 8 in the picture that won't be mentioned. The circle of fifths, which shows a relationship between the 12 chromatic notes and the order of the sharp scales (from 0 sharps to all sharps), is shown on the blueprint. Only the bottom door to the blueprint is open, which could represent that the way you entered is the only way out which brings us back to the circular motif.

I apologize for the length of the post, however there are plenty more references to 5, 8 and the circular motif in the album art, songs, and background information which is interesting.