Steve Reich at 80, his finger on the pulse of a bewildered country

From left, Nick Terry, James Babor, Matthew Howard and Jeffrey Grant perform “Mallet Quartet” in the Tuesday concert by the LA Phil New Music Group celebrating the composer Steve Reich. From left, Nick Terry, James Babor, Matthew Howard and Jeffrey Grant perform “Mallet Quartet” in the Tuesday concert by the LA Phil New Music Group celebrating the composer Steve Reich.