The reconstruction is based on a meticulous evaluation of those autograph harpsichord concertos that also survive in an original version for violin. In particular, the autograph harpsichord parts contain changes that Bach made when preparing his arrangements, thereby revealing the manner in which he transcribed his solo violin works for the harpsichord.
The keyboard realization is presented in a transparent way allowing players the possibility to embellish and fill in the harmonies at their discretion. -the publisher