Here's where Gen X (me) and Gen Y (the band) will forever diverge: I can totally appreciate this music for its energy and technical finesse, but never in a million years would I choose to listen to it. Call it screamo, call it nü-post-punk rock, call it whatever you like. Mason's music angsty but hopeful, passionate but detached is defined better by generational distinction than a genre tag. So let's define it accordingly:
< 22: Intense, nails-on-chalkboard guitar; syncopated, off-kilter tempos; obliquely tortured lyrics; tightly wound progressions; brainiac chord progressions; epiphanic crescendos. Mmm, that's good screamo.
> 22: Overambitious waltz-metal with awful, razor blades-down-the-throat vocals. Do kids really listen to this?
Yeah, old-timer, they do.