The Grimlark Verses refers to series of Notes by the same name. They appear to be following the alphabet. Below is all of the individual notes and their accompanying text:
*Grimlark Verse 1
A is for Abazigal, blue Bhaalspawn thrown down
B is for Bone Throne, Bhaal diced there for a crown
*Grimlark Verse 2
C is for Cyndre, assasin wizard of Thay
D is for Deathstalkers, cultists who slay
*Grimlark Verse 3
E is for Elkan, by Gromnir betrayed
F is First Murder, the Bhaal primate's aide
*Grimlark Verse 4
G is for Gorion's Ward, foe like no other
H is Helena, shapechanger mother
*Grimlark Verse 5
I is for Illasera, Bhaalspawn fighter-mage
J is for Jergal, exhaused by age
*Grimlark Verse 6
K is for Keen Strike, Bhaal's order great
L is for Liia, Duke Jannath of the Gate