We actually used the exact same process for both albums, the only major difference was that Grant and Andrew shared the riff writing duties on Apex, but it was all Andrew on Abyss. Prior to writing Apex and Abyss I wrote out a track-by-track guideline for every song on the album as though they were chapters in the story, and in those chapters I included what was going on in the story, how I wanted the song to make the listener feel, what I wanted the song to sound like (ie. dark and heavy, fast and light, etc.) and any artists or particular tracks that I hoped would inspire or influence the song melodically or structurally. The boys then took that guideline and used it to come up with riffs, which we would toss back and forth and edit here and there to make sure they would work for each song. Andrew did an incredible job of coming up with super catchy riffs on Abyss, and we dissected each and every track to make sure that everything had a purpose and was all moving in the same direction. We really took our time writing Abyss to make sure that every song made sense and fit perfectly with the tracks that came before and after.