The Holmes Brothers are juke-joint vets with a brazenly borderless view of American music. Their country-heavy Simple Truths features covers of Willie Nelson, Townes Van Zandt, and Hank Williams, whose ''I'm So Lonesome I Could Cry'' sizzles in the grease of a fuzz-tone guitar. Wendell Holmes' luxuriously bittersweet ''We Meet, We Part, We Remember'' is a timeless original. With a purity of heart and rapturous harmonizing, these brothers are righteous indeed.

