Sentence:  But the two are not just related. They are the same! Inversion, retrogradation, retrograe, inversion, augmentation, diminution, partition, <WSD>interversion</WSD>, exclusion, inclusion, and textural change -- these composing operations are the very ones described by Holywelkin's equations! 
Meaning of the word marked with <WSD> tags:  A composition technique in which a sequence of elements composed of notes or rhythms is repeated in permuted orders.