The winner of the Solo/Duo challenge was established last night, before a full house, at the Pine Loft, in Berlin. Seven acts (preliminary winners) competed and all performed at the highest level. The audience appreciated the talent of each individual participating in the event. The duo of Ramblin' Dan Stevens and Clayton Allen won the competition, based on the scores of the experienced judges, using the criterion of the Blues Foundation, in Memphis. RAMBLIN DAN STEVENS AND C