The

has a cool web site called the

, that allows you to explore Bach's music with graphics, video and text, by following a piece of music while you are listening to it. For example, click on a movement from Bach's monumental Mass in B Minor and the pages of the music appear. A highlighted tab moves along the page as the performance progresses. Better than a bouncing ball.

The pages turn automatically, or you can "turn" the digital pages yourself by dragging your mouse. The score is a facsimile of Bach's original music, so the notes are a little hard to follow, but click on "lens" and a magnifying lens enlarges them.

In addition to a performance of the B Minor Mass, the site contains a performance of Bach's Goldberg Variations, a lecture on the B Minor Mass with artistic director Helmuth Rilling and a conducting class with Rilling. Bach's St. Matthew Passion will go up on the site after a performance at this summer's festival, which runs June 29 to July 15 in Eugene, Portland and other locations.

, now teaching at Northern Arizona University, created the innovative site.

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