Vol. 14 of
Gerhard Weinberger's cycle of Bach's organ works is devoted to transcriptions, most of which were likely written in Weimar between 1708 and 1717. The Concerto in C major, after Vivaldi, features virtuosic passages in the jubilant outer movements, with an expressive recitative in the Adagio. The subdued Trio in B minor is an arrangement by unknown hands of Bach's Sinfonia (BWV 709). The Trio in G may be an arrangement of a keyboard work by Telemann, though its provenance is uncertain. The Fugue in G minor is a double fugue based on a movement from Cantata (BWV 131) and was probably written by a member of Bach's inner circle. The Trio in C minor, perhaps arranged by Bach himself, is derived from a string piece by Johann Friedrich Fasch. The magisterial Prelude and Fugue in D minor and the somewhat pastoral Sonata in G also share uncertain origins, though internal evidence points to Bach's probable authorship. The concluding Concerto in C, based on a lost work by Prince Johann Ernst, is unusual for being a single movement and features fast repartee between manuals.
Weinberger faithfully performs these transcriptions on the Johann Wagner organ of 1723, which has the bright and transparent registration of the period.