I bought this CD for the Prophetiae Sibyllarum, a work I had never heard before. The Prophecies form a large scale work of Lassus's relatively brief chromatic period. Chromatic means that these pieces do not stay centered around a certain key, like D minor, but rather move rapidly from key to key, an approach to harmony that essentially disappeared from music after this period until Wagner. The chromatic approach fits the texts, which are poems that are Christian but with a strong pagan influence. (It would be an interesting problem to decide whether any of them would be acceptable as an anthem in a Roman Catholic Tridentine Latin mass). But they seem less chromatic than Gesualdo madrigals. I was actually disappointed that they did not sound more exotic. I managed to get a copy of the score, and when a group of us read through some of them, we found them fairly easy to sight-read, because the harmonic transitions are fairly natural to the ear, and like much of Lassus, their tempi are mostly on the slow side (which makes sense for Lassus because he wrote for cathedrals with long reverberation times). On balance, I found the Prophecies less musically inspired than I had hoped. But this is a fine recording of rare music, and I'm glad I own it.