The piece of music once known as Wolfgang Amadeus Mozart’s?Symphony No. 2 in B flat major, KV 17, is now considered to be spurious, and possibly by his father, Leopold Mozart.
The piece is in four movements in the usual quick-slow-minuet-quick pattern: Allegro (Andante), Menuetto I & II, Presto. The publication of this symphony in the Alte Mozart-Ausgabe, the first collected edition of Mozart’s music, shows several points at which smaller, editorially-supplied notes are given, suggesting an unfinished composition. For instance, in “Menuetto I,” only the first violin and cello/double bass parts are completed; the second violin and viola parts in their entirety in this movement are editorial additions.