Described as offering “an unmistakable sound … with driving instrumentals and tight harmonies,” the New Hampshire-based duo of Craig Engel on guitar and Steve Abdu on bass, known collectively as NewFound Grass, will bring a background of bluegrass, soul, rock, and jazz to the stage at East Andover’s Highland Lake Grange Hall for the next Andover Community Coffeehouse “Third Friday” concert on October 16 beginning at 7 PM. The public is invited at no charge, though donations are gratefully accepted.

Offering traditional bluegrass with a modern twist, the work of NewFound Grass has been compared to that of Lester Flatt and Earl Scruggs, Jimmy Martin, the Lonesome River Band, Alison Krauss, and Ricky Skaggs.

Also appearing onstage that evening will be up to a dozen open-microphone performers, whose contributions in previous months have ranged from the spoken word to show-business, jazz, folk, bluegrass, and country-and-western tunes.

Doors to the Grange Hall will open at 6 PM for food purchases offered by the Andover Congregational Church and for open-mic sign-ins on a first-come, first-serve basis. The show is sponsored by Longtail Publishing, “The Home of the Good Dr. Jack.”

Though usually appearing as part of a quartet, Engel and Abdu also perform regularly as a twosome throughout New Hampshire. Along with their wives Gina and Bette, they also produce the Pemi Valley Bluegrass Festival, New Hampshire’s premier bluegrass event. The festival is held annually during the first weekend in August at the Sugar Shack Campground in Thornton. See NewFoundGrass.com for additional information.

Andover Coffeehouse events since January have drawn standing-room-only audiences and close to a dozen open-mic candidates each month. The venue was chosen by the editor of New Hampshire Magazine as “2015 Best of New Hampshire Open Mic Night.” Information about future dates and scheduled performers, and a photographic record of the performers, both headliners and open-mic participants, are shown in the Coffeehouse Web site at AndoverCoffeehouse.org or on the Facebook page “Andover Community Coffeehouse.”

Looking ahead: On Friday, November 20, the headliner will be singer-songwriter Julie Snow, whose work has been described as “contemporary folk music with a political edge, alternately funky and sweet, outraged and introspective, threaded through with rich and unexpected chord changes and rhythms.” For additional information, see JulieSnowSongs.com.