Nikolaus Harnoncourt and Gustav Leonhardt were at the forefront of the early music movement that swept classical music in the '70s and '80s, performing pieces from the canon with period instruments in order to re-create the original intent of the composer as closely as possible. And their most enduring legacy is right here, the complete survey of Bach's sacred cantatas that they began in 1971 and completed in 1988. This body of work has served as a beacon for younger musicians seeking a fuller understanding of Bach's work, and will forever be regarded as one of the pioneering projects in the history of recording classical music. 60 CDs in all. "Brilliant"- New York Times.