Although Bach and Philip Glass may initially seem an odd pairing, upon hearing these two concertos (Keyboard Concerto No 7, BWV1058 and Glass’s Third Concerto, Circles) separated by nearly 300 years, there is much to compare and contrast. Not only are both based around simple building blocks of arpeggiated chords; both are scored for the rare combination of keyboard and strings alone within a three movement structure. And Glass has often talked of his intense study of Bach as demanded by his teacher, esteemed French pedagogue, Nadia Boulanger.