According to Richard, interviewed in the Hard Rock Mag #49 (on sale here), 21 songs were mixed pour Silent So Long. Since the album contains 11 songs, the other 10 songs could be B-sides for limited editions or singles. Instead, Richard will re-use them on another record, which will be released
The sequel will be released later on. All the 21 songs mixed fit well together. So it was quite difficult to choose the titles of Silent So Long, I've been doing this by feel. I just have to compose 2 or 3 new tracks to finalize the other record.