Guitarist Craig Chaquico will open the show for Tower of Power on Friday, July 27, at Britt Festivals in Jacksonville.

Guitarist Craig Chaquico will open the show for Tower of Power on Friday, July 27, at Britt Festivals in Jacksonville.

Chaquico was a member of the band Jefferson Starship. He also worked with the band after it morphed into Starship.

David Sanborn was scheduled to open the show, but his managers have announced cancellations of the performer's tour dates due to pneumonia.

Tickets for the Sanborn-Tower of Power show are still good for admission to the Chaquico-Tower of Power show.

Refunds or exchanges are available at the Britt box office. Hours are 8:30 a.m. to 5:30 p.m. weekdays and 9 a.m. to 3 p.m. Saturdays. The box office also is open from 11 a.m. to 3 p.m. on Sundays that are show days. Call 773-6077.