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.
Ten years ago Angela Hewitt recorded a version of The Well-Tempered Clavier Book I which dazzled the critical world and record-buying public. It was followed shortly afterwards by Book II which was similarly received. Now, fresh from her Bach World Tour—in which she performed the complete Well-Tempered Clavier from August 2007 until the end of October 2008 in 58 cities in 21 countries on six continents—Angela has made an entirely new recording of this most iconic of keyboard works.
In a way, this is the best possible version of the WTC to someone who is looking for a balanced, deep and totally honest version. The harpsichord is a beautiful Flemish-French (recent research shows it is rather more French than Flemish) harpsichord (Gilbert's own) that has a marvelous sound: rich and deep, and yet bright and clear. Professor Gilbert's version is as new now as it was when it was released. It is totally respectful of the music (you won't find eccentricities, here, just the music but superlatively played). He has a very cantabile sense of the music - every voice is respected - and his Bach is phrased almost as a dance, rather than as gesturing. He seems to belie Leonhardt, when the Dutch says that the piano was meant to sing and the harpsichord to speak; in Gilbert's hands, it really sings). Do not expect strong chords, abrupt contrasts or anything like that. Gilbert's version is for the connoisseur rather than the Fireworks enthusiast. If you examine, in detail, the way he plays, you will find that every voice is subtly sung, that the amount of work and serious thought he lavished into Bach's music is prodigious.