As I listen to this I am more and more convinced that the era of great instrumental recordings and great performing/performing musicians was Schnabel and the Busch Quartet. To those who are not a fan of Schnabel (ha! that won't last for long) due to whatever ridiculous reason (for example he makes a noticeable mistake in the first movement of opus 106, but still plays the entire sonata greater than anyone else could ever dream of playing it) do not find that any reason to ignore the Busch Quartet (I just like to compare the two because of their historical proximity, and by the fact that Schnabel's Beethoven set is the greatest ever made, and the Busch quartet's Beethoven recordings are the greatest ever made). Now you will notice that it their set is incomplete. You might despair at first, but you will soon enough realize that "its riches far outweigh any complete traversal of the set". If my respect for Beethoven was not greater than that I have for the Busch quartet I would be perfectly fine in ignoring those this immortal quartet didn't record. Anyways, people that are reading this are hopefully aware of the Busch quartet's genius, so I will conclude this sloppily written review by saying by first saying, that technically these recordings are the greatest ever made of any piece of music, due to the fact that they are the greatest recordings of the greatest works (the late quartets with the addition of some others) of (I like to think) the greatest composer, and that the remastery job down by Michael Dutton is unbelievable: it literally sounds better than the recording of the digital era.