Simplicity can be a virtue--the nice thing about the Allmans is that when they put two five-year-olds on the cover we know it's not some "decadent" joke. Gregg Allman is a predictable singer who never has an unpredictable lyric to work with anyway, and the jams do roll on, but at their best--"Ramblin' Man," a miraculous revitalization of rock's earliest conceit--they just may be the best, and on this album Dickey Betts's melodious spirituality provides unity and renewal. A-