Two concert programs can't come close to conveying the variety of Johann Sebastian Bach's music, but Publick Musick will give it a good try this week. The local, early-music organization is presenting some top-notch musicians in two "Summer Nights with Bach" concerts: one Wednesday, August 12, and the other on Saturday, August 15. Wednesday's concert features soprano Laura Heimes, baritone Jesse Blumberg, and oboist Geoffrey Burgess in three Bach cantatas, including the sublime "Ich habe genug." This concert also features Christ Episcopal Church's Craighead-Saunders organ, ideal for baroque music.

On Saturday, move up East Avenue to Incarnate Word Lutheran Church to enjoy an intriguing program of Bach concertos and other works featuring oboe, strings, and harpsichord. These include the Rochester premiere of an oboe version of the Second Orchestral Suite, the one usually heard with solo flute). Bach was not at all above recycling his music for different instruments; a great composer is a thrifty composer.

Publick Musick's "Summer Nights with Bach" will take place Wednesday, August 12, at Christ Episcopal Church, 141 East Avenue, 7:30 p.m. And Saturday, August 15, at Incarnate Word Lutheran Church, 597 East Avenue, 7:30 p.m. $20 general admission; $10 student and low income; $30 for both concerts. 244-5835; publickmusick.org.