Wolfgang Amadeus Mozart's Piano Sonata No.

17 in B♭ major, K. 570, dated February 1789,[1] is a sonata in three movements: A typical performance takes about 18 minutes.

There is an accompanying violin part of doubtful origin in many 1800 editions; the piano part is exactly the same as for piano solo.

Neue Mozart-Ausgabe (NMA) describe it as an addition by either Johann Anton André or Johann Mederitsch [de].

This article about a sonata is a stub.