Cellist Alisa Weilerstein pushes Bach to the limit

Alisa Weilerstein apparently can make her cello do anything she wants. On Tuesday night in Harris Hall, she applied extraordinarily flawless technique for nearly 3 hours and 30 minutes to some of the most profound music ever written for the instrument: Johann Sebastian Bach’s suites for unaccompanied cello, all six of them in one go, without hardly blinking.