The Trio Sonata BWV 1038 is the first edition of chamber music for flute by Johann Sebastian Bach that Barthold Kuijken has prepared. Scholars have long doubted the authorship of this work for stylistic reasons, even though the performance parts of the principal source were written by Bach himself; unfortunately he forgot, or did not consider it necessary, to append his name to the music. Kuijken rolls out some convincing arguments that refute the thesis that the young Carl Philipp Emanuel Bach worked out the trio version from the Violin Sonata BWV 1022. The edition also examines a variety of new findings on the origin of the work in the preface, and offers a faultless Urtext with a stylistically masterfully realized continuo part, all reflecting the highest editorial standards.

The continuo has been realized by Ewald Demeyere, taking contemporary treatises into account.

"I am very, very impressed by the Breitkopf / Kuijken edition of Bach's flute sonatas that I bought yet another copy when I discovered to my horror that I was en route to a recital abroad without my music. Breitkopf (make sure it's the new edition by Barthold Kuijken you buy) publish each sonata separately, which inevitably works out more expensive, but with the amount of extra information and inclusion of flute and bass parts together this is a bargain. Everyone should have these, even if they already possess other editions." (Pan Magazine)