Drums, drum animations, and tempo map by Grinnz; Pro Keys and QA by Mazegeek999; rest by Onyxite.
Moving along with barely a break, This Dying Soul is the second song in the album-spanning "Twelve-Step Suite", a series of songs written by drummer Mike Portnoy about his struggles with alcoholism and his journey towards recovery. Stretching from `Six Degrees of Inner Turbulence` to `Black Clouds & Silver Linings`, the 5 songs contain 12 movements which correspond to the steps espoused by the Alcoholics Anonymous recovery community.
The first movement (4th of the suite) is titled "Reflections of Reality (Revisited)", a reference to a lyric in `The Mirror`, a song considered to be a predecessor to the suite. Thundering drums with toms over double bass lead into the main riff repeated throughout the song, and then into a guitar solo featuring (AFAIK) the only guitar tapping on the album.
The second movement, "Release", starts with a variation on the chunky riff from "The Glass Prison", before settling into a much faster tempo for a more demonic-sounding set of verses/choruses, keys and guitar solos, and what might be the most face-melting guitar/keys unison in DT's discography.
Guitar tuning: 7-string (B E A D G B E) (pro guitar chart shifts between strings)
Bass tuning: 5-string (B E A D G)