Tiller’s Folly played their hearts out for an appreciative audience during last week’s Kettle River Museum summer wrap-up concert. The sun-drenched crowd of more than 200 was treated to two excellent sets of mostly original Celtic-flavoured folk songs, performed by the west-coast band that calls itself a “power trio.” Proceeds from the concert, which totalled $22,000, will be added to the growing Rock Creek fire relief fund.