Q about Book of Eldritch Might 2

[Maraxle]

How much of this is OGC? BoEM was pretty limited, from what I saw.

EDIT: I'm specifically wondering about the variant classes.

 

[lambdaZUG]

Designation of Open Game Content: Subject to the Product Identity designation above, the following portions of Book of Eldritch Might II: Songs and Souls of Power are designated as Open Game Content: the variant bard and sorcerer classes in Chapter One; all skills, abilities, and feats; the eldritch warrior prestige class plus the advancement tables and Class Features for the other classes in Chapter Three; all spell parameters (range, duration, etc.) and game mechanics in Chapter Six; the unholy riven new monster plus the statistics and Combat text for the other monsters in Chapter Eight; and anything else contained herein which is already Open Game Content by virtue of appearing in the System Reference Document or some other Open Game Content source.