Very little has yet to be said about Morton Feldman, so I will keep this brief, but such an influence has this man had on me that I would find it difficult not to encourage anyone and everyone that I can to dive into his work.
Two Pianos has been loving re-released by Another Timbre (if you have not heard of them, I urge you to listen through their back catalogue, a truly undetermined exposition of modern classical music, leaning toward the minimal side of the spectrum). Every moment of this pieces exudes restraint, with sustained piano hanging ethereally in the air. The true lustre lies in the subtle interactions of harmony that occurs in the moments between events, and the way in which the chaotically determined frequencies morph and change each other as they hang ominous in space.
To some Feldmans work may seem disjointed and accidentally, but to me it is the true meaning of calm.