My only serious reservation concerns the central aria in BWV 170 (and this is true no matter who performs it), whose melodic structure and interaction with the organ obbligato just seems uncharacteristically awkward. Kielland's slow tempo only enhances the impression that voice and instrument are antagonists rather than partners. Beyond that, we're treated to several of Bach's more inspired melodies, especially the first aria in BWV 54, "Widerstehe doch der Sünde", which the composer used 15 years later, set to the text "Falsche Welt". A decent alternative for these cantatas is Jadwiga Rappé's 1995 performance on Accord--but the current version is slightly preferrable for Kielland's warmer, more facile singing.