by Richie Unterberger
Breakthrough was one of the very finest American garage LPs, fusing Midwestern guitar-organ pop with the raunch of British Invasion groups and stressing well-written original material. It is also extremely rare and, should you locate an original copy, extremely expensive. But take heart -- ten of the 12 tracks have been reissued on Sundazed's At the River's Edge CD. The two other songs are routine, dispensable covers of the Yardbirds' &Mr. You're a Better Man than I& and the McCoys' &Hang On Sloopy,& so you shouldn't fret about their absence from your collection.