wait actually now I wanna break this down
MAMA - early DBSK brought into 2012 (in other words, what used to be "SM style")
What is Love - TVXQ.
History - sufficiently different, but has subtle SHINee teas.
Angel - nice song, doesn't particularly remind me of anything. solid ballad.
Two Moons - Super Junior's weirdass rap tracks, just without the random noises. 

Machine - I cannot put my finger on this one. Is it TVXQ? Reminds me of something from TONE, except the chorus.