Symphony No. 37 (Mozart)

37 in G Major, (K. 444/425a + Anh A 53) is a work that was once attributed to Wolfgang Amadeus Mozart and given a place in the Köchel catalogue as well as the above number.

This mistake, long ago corrected, resulted from a brief musical introduction (an adagio maestoso) added by Mozart to Haydn's symphony.

Georges de Saint-Foix considers the introduction "an expressive prelude, which, moreover, is by no means entirely in key with the movement it is intended to prepare.

"[2]: 95 Mozart did not copy the rest of the work verbatim: he removed a bassoon solo from the middle Andante sostenuto movement, and "appears to have reduced the colla parte writing in the winds throughout the work," according to Gary Smith.

According to the Breitkopf & Härtel edition, the score calls for flute, 2 oboes, 2 horns and strings; performances tend to include bassoons (always in unison with the celli except for significant passages in the Adagio), which were part of Michael Haydn's original score but left out by Mozart, and a harpsichord playing figured bass, based on the cello line.