The Lemon Twigs

Long Island brothers Michael and Brian D’Addario first showed off their high-kicking, bell-bottomed retro-pop-rock style at the Current’s 12th birthday two years ago and stayed in rotation with their Badfinger-flavored single “These Words.” They’re back with a concept/story album about a chimpanzee for their sophomore effort, “Go to School,” a true love-it-or-hate-it, over-the-top affair. Part Freddie Mercury, part “Jesus Christ Superstar,” it should make for a memorable show either way. (9 p.m. Sat., First Avenue, 701 1st Av. N., Mpls., $20-$25,

Chris Riemenschneider

Tommy Emmanuel and John Knowles

The late and greatly admired Chet Atkins created a small, exclusive club called “Certified Guitar Player” for finger-style guitarists he admired. Two of the three living CGPs — Aussie Emmanuel and Texan Knowles, who earned a Ph.D. in physics — have teamed up for an album, “Heart Songs,” and a duo tour. The record offers intriguing instrumental interpretations of such emotional classics as “How Deep Is Your Love,” “I Can’t Stop Loving You,” and “I Can’t Make You Love Me.” Considering Emmanuel has often played Ames Center in Burnsville, this intimate engagement is that much more exclusive. (7 p.m. Fri.-Sat., Dakota, sold out,