Although Penderecki's music is very precisely notated, the very nature of extended techniques makes attaining exact replication of sound impossible. There is always some element of chance in this music. No two performances will ever be alike. There is considerable variation in these present recordings than in the classical recording from the 60s and 70s with which we're all familiar. Probably the fairest and easiest way to describe it is a return to the darker, more sinister side of this music while simultaneously attaining greater clarity and precision of the parts. You can hear most of the parts very clearly and distinctly throughout unlike some of the earlier recordings. Perhaps the best piece on this recording which characterizes this is "Jacob's Dream". The old Polish Radio National Symphony Orchestra recording from vol. 4 has that dark biting edge to it and was used in the Stanley Kubrick's movie "The Shining". Later recording of the piece don't have the same heaviness and sound more mystical. The present recording seems to have it all and surpasses every one in terms of clarity of parts. The ground really seems to shake and the earth is about to swallow you up, yet you marvel every instant of the crystalline sound. The same can be said for De Natura Sonaris and all the other pieces contained here. Antoni Wit has been conducting this music for a very long time now and this recording is the result of decades of experience of a first rate musician. If you are already enamored of this music it is well worth skipping 2 or 3 cups of Starbucks coffee and reclaiming the time you would have wasted watching another B movie on Netflix to immerse yourself in these recordings.