Singer-songwriter-producer Don Dixon just released an album called

The Invisible Man, but it’s his wife, Marti Jones, who’s been hard to find lately. After releasing a string of smart pop albums in the late ’80s, she was last seen on shop shelves with 1996’s Live

at Spirit Square and My Long-Haired Life. But Dixon and Jones still appear onstage together. Their show at the Birchmere tonight will undoubtedly include past favorites such as Dixon’s “Praying Mantis” and Jones’ cover of Graham Parker’s “You Can’t Take Love for Granted,” but expect an emphasis on The Invisible Man, a song cycle “about mortality & redemption” that features Dixon’s trademark vigorous bass and clever, heart-tugging lyrics. Catch ’em before they disappear again at 7:30 p.m. at the Birchmere, 3701 Mount Vernon Ave., Alexandria. $19.50. (703) 549-7500. (Pamela Murray Winters)