Alina Ibragimova and Cédric Tiberghien get their Beethoven cycle off to a flying start with zesty accounts of the Op 12 set alongside the evergreen Spring Sonata. They perform on period instruments – she, a 1570 Amati violin; he, a replica 1794 Walter fortepiano – but there’s nothing academic about these fresh-as-a-daisy interpretations.

Among the Op 12, the D major sonata crackles with an almost capricious theatricality. One moment they are teasing, the next goading each other into greater feats of athleticism. Ibragimova explores the widest of dynamic ranges, accompanied by Tiberghien, whose quicksilver right hand is matched by a percussive left that would give a timpanist a run for his money.

The amiable E flat major is no less high-spirited, with violinist and pianist taking turns as metrical powerhouse or silken melodist. For all their vigour, there’s a shapely elegance here, ensuring the music sounds neither remorseless nor brittle. As for the sunny A major sonata, only the stoniest of hearts could fail to be charmed by their buoyant optimism. An effortlessly supple andante is framed by outer movements replete with comedic flourishes.

The Spring Sonata’s nature imagery brings out their gift for storytelling, with back-and-forth birdcalls in the opening movement caught seemingly on the wing. Ibragimova virtually moos in the gently ruminative adagio. From chuckling scherzo to sauntering rondo finale, each phrase feels considered and sculpted accordingly without any loss of spontaneity. BIS’s detailed SACD sound is convincingly natural.

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