Das Wohltemperirte Clavier, a collection of preludes and fugues in all major and minor keys completed by Johann Sebastian Bach in 1722, was clearly modelled along the lines of Ariadne Musica by Johann Caspar Ferdinand Fischer (1662-1746, Kapellmeister in Baden from 1715 to 1746) – an organ music anthology published for the first time in 1702 and probably known by Bach in its second 1715 edition. Bach took Fischer’s original layout of 20 keys and expanded it to a total of 24, thereby creating the first self-contained collection of music written for the entire corpus of existing keys.
In his recording of Bach's 48 Colin Tilney, unlike his fellow competitors in the same repertory, plays both a clavichord (Book 1) and a harpsichord (Book 2). Why not? Bach's title for the first book of 24 preludes and fugues, The Well-tempered Clavier leaves both this issue and that of tuning wide open. The clavichord was a favourite instrument of Bach's, so was the harpsichord and the organ; indeed, I am sorry that Tilney does not include a chamber organ since some of the pieces, the E major Prelude and Fugue (Book 2), for instance, seem well-suited to it. Tilney's performance of the 48 differs again from almost if not all others in the sequence which he adopts in playing the preludes and fugues. But an apparently random approach is in fact nothing of the kind, but one that is directly linked with tuning. We know that Bach himself was a master in matters of tuning as he was in all other aspects of his craft. What we do not know is the exact nature of his tuning.
Christopher O’Riley’s THE WELL-TEMPERED CLAVIER BOOK I delves into the subtle intricacies of Bach’s famous masterwork, revealing the composer’s nuanced craftsmanship through an exploration of the spaces between notes. Inspired by Bach’s profound lyricism and informed by historical insights, O’Riley’s interpretation transcends conventional keyboard traditions. Embracing the expressive potential of articulation and texture, he illuminates counterpoint with dynamic contrast, unveiling hidden dialogues within Bach’s compositions. Through meticulous attention to intonation and rhythmic flexibility, O’Riley uncovers layers of meaning, echoing the Japanese concept of “Ma” — the significance of space and silence. This album invites listeners to immerse themselves in Bach’s universe, where every pause resonates with depth and possibility.