[nreel]

You, most likely, share the same BookID with the two discs.

Q1. If you are only going to allow the Adult songs to be sung occasionally, why not just burn them to a disc and queue the disc when needed via add CDG?

Q2. Or, why not Import the Adult songs into the same Folder as the rest of your KMAs? Is it because you don't want them to appear in your SongList? If this is the case, see Question 1.

Q3. Or, why not put two Folder Song Locations in your Build Song Database? Is it because you don't want them to appear in your SongList? If this is the case, see Question 1.