"Triangular Triangles" - The Bazillions

Artist: The Bazillions

Song: "Triangular Triangles"

Album: Heads or Tales

Description: Another video from the band's Kickstarter project via eg design.  Songs about math are probably harder, generally speaking, to visualize than those about words (let alone stories), so while the base song works well, the video itself pretty much does a perfect job in describing those three types of triangles.

Source: Vimeo

"Symmetry" - The Digits

Artist: The Digits

Song: "Symmetry"

Album: Homework Hotline 

Description:  How many power ballads do you get to hear concerning the geometric principle of symmetry?  Probably pretty few.  How many power ballads do you get to hear concerning the geometric principle of symmetry that are prompted by Jonathan Coulton ?  None, I would wager to say, but The Digits (a webseries and app) are here for you, friend.

Source: YouTube 

"Rocketbox" - Umigo (feat. Bootsy Collins)

Artist: Umigo (feat. Bootsy Collins​)

Song: "Rocketbox"​

Album: N/A

Description:​ Once you get past the beginning of this cartoon, which explains why Bootsy Collins would be singing about telling time (Umigo -- the concept, not the character -- is actually funded by a government grant designed to teach kids 2 through 8 mathematic principles), you get to a funky song featuring Bootsy Collins singing about telling time.

Source: Vimeo