This is the string quartet that won the Banff competition the time before I went, and the video embedded at the bottom of my review (of the finale of a different Beethoven quartet than the one they played this time) is the same video I embedded at the bottom of my post last year saying "I'm going" to the competition because "I want to hear more people who can play like this."
And I did; and I see from the bio in the program book that the winners of that iteration, the Rolston Quartet, will be teaming up with the Dovers to play Mendelssohn's Octet in Montreal in June. That should be good, and not just because I believe that whenever two string quartets appear on the same program, they should be required by law to play the Mendelssohn Octet.
I have heard the Dovers myself before now: they re-appeared for an alumni concert at last year's Banff, and I caught them last fall in San Francisco playing Dvorak's "American" Quartet, not a gnarly enough work to catch this group at its best. This concert, though ... this one was tough stuff. I reported the pre-concert lecturer (well-meaning, but it's really about time for him to retire) mentioning that one of his community-class students had asked him in puzzlement at the Shostakovich, "How do you listen to music like this?" I didn't give the lecturer's frustrating answer, "Just listen." Isn't it obvious from the question that the student needs his or her hand held a little more than that? I'd find a more lyrical recording of the piece - there are some - and point out the melodies and what the composer does with them. Once you absorb that, you can hear it in a tougher performance, and use it as a base to grasp what the tougher one adds to it. I don't have that much trouble with Shostakovich (any listener who finds the Second baffling will be absolutely dumbstruck by the late quartets), but that's how I learned my way around late Beethoven. I was astonished the first time I heard a performance of Op. 132 (the piece played here) that brought out the curvaceous beauty of the work: I'd never heard that before. But now that I've found it, I can always hear it.