Go read Steve Smith’s interesting NY Times feature on the Kronos Quartet — an ensemble whose revolutionary programming and concertizing laid much of the groundwork for the “alternative classics” championed by Bang on a Can, Absolut Ensemble and innumerable other adventurous ensembles and series — as they celebrate their 25th anniversary. To be honest, though, the more traditonal but often more daring Arditti Quartet deserves the same amount of ink.