Haydn’s Sonata in g minor stems from the time between the late 1760s and the early 1770s, when the composer was music director at the Esterházy court. The time and circumstances of its genesis cannot be determined more exactly. The source situation is also not ideal: neither an autograph nor an authorised first edition are known, so the Urtext edition is therefore based on four contemporary copies of the sonata. Nevertheless, the musical score does not pose any open questions, and even all these...