Hi GMC! Welcome to the lesson about the Symphony X ballad. I've made this lesson to explore some elements of the composition that this great band uses when they have to make an intro or some nice ballad. Symphony X is well known for their hard riffs but they have also nice clean guitars on songs like The Accolade, Lady of the Snow or The Divine Wings of Tragedy.
So the lesson has three major parts:

1- First part (where the bass do a kind of solo)
2- Second part (where the key makes a little solo)
3- Third part (where the guitar stays all by itself)

Most of the lesson has the Dsus4 chord as the harmony but the bass note changes to give the altered bass the lead of the harmonic changes. That's a typical resource that Michael Romeo uses when doing this kind of rhythm guitar.

The lesson is in the key of Gm.

I hope you enjoy the lesson!