It helps if they can read music or at least have an understanding of it. The opening song on the DVD is in a brisk 25/32 time signature. Itís an extremely complex piece but tremendously heavy. When I brought it into rehearsal the music for each part stretched close to 25 feet. Poor Jeremy Colson had a full on anxiety attack. But I knew that they would be able to play it and Iím an expert at rehearsing complex music. We took it piece by piece and gave our patience and our soul quite the work out. The end result is a glorious artistic metal track that is melodic, seamless, entertaining and flows very naturally. The band performs it with fierce confidence.