There's a nice article in today's Boston Globe about Helmut Lachenmann, the German composer who has championed the JACK Quartet, and JACK's performance in Boston on Friday night. The article quotes one eager listener as saying before the concert that he could stand anything that wouldn't take the enamel off his teeth. He wasn't so sure afterwards. The article erroneously has JACK based in Chicago. I don't know where that comes from. Two of its members are living in New York City; one is in Boston and one is in Lancaster, PA. Other than that, it's a very nice article.
JACK is performing in Philadelphia Monday night.