Guitar trio Triada (formerly known as BG Brothers) will present a free concert for the Door County community Aug. 15 at Shepherd of the Bay Lutheran Church in Ellison Bay.

        It is the Chekardzhikovi brothers' way of saying thank you and goodbye to the people of Door County, who have admired them and avidly listened to their performances over the past four summers. They are leaving for Southern California to continue graduate studies at California State University-Fullerton under the guidance of guitar master David Grimes, with whom they have taken master classes in their native Bulgaria.

        Nikola, Vasil and Petar Chekardzhikovi will showcase their virtuosity and musicality with classical and romantic favorites, along with exciting bossa novas, ragtimes and light jazz. The concert will also include two or three arias performed by soprano Sofiya Chekardzhikova, wife of Vasil, who majored in voice and piano in Bulgaria.

         Having studied with the best teachers in Europe, the three brothers are former members of the guitar quartet "Four of a Kind/' which included their equally talented sister, Petya. An extensive schedule of concerts, radio and TV appearances in Bulgaria led to several concert tours in Europe under professional management.

        In the United States, Triada has presented concerts throughout the Upper Midwest, Colorado, Texas, California and Hawaii. In Door County, the brothers have performed regularly aboard Sunset Concert Cruises and at Inn At Kristofer's, Birch Creek Music Performance Center and Unitarian Universalist Fellowship. The trio, and its individual sibling members, have participated in world premieres of a variety of new compositions. One example is the - premiere of a and orchestra by This work Saturday, Aiwust 13 DR. JAZZ concerto for three guitars Bulgarian composer Rossen Balkanski. This work will soon be premiered by Triada and the Huntington Symphony Orchestra.

        The brothers have recently released a new, mostly classical CD which will be available for purchase at the concert. The CD is also sold at Handverks Music and Harp Center in Sister Bay or by calling 854-2986.

         Triada's farewell to Door County concert will take place at 7:30 p.m. Monday, Aug. 15, at Shepherd of the Bay Lutheran Church in Ellison Bay. A freewill offering will be taken, which will go toward the trio's educational expenses.