<P> Changes needed for the melodic and harmonic versions of the scale are written in with accidentals as necessary . G minor is one of two flat key signatures that require a sharp for the leading - tone (the other is D minor). </P> <P> G minor has been considered the key through which Wolfgang Amadeus Mozart best expressed sadness and tragedy, and many of his minor key works are in G minor, such as the Piano Quartet No. 1 and the String Quintet in G minor . Though Mozart touched on various minor keys in his symphonies, G minor is the only minor key he used as a main key for his numbered symphonies (No. 25, and the famous No. 40). In the Classical period, symphonies in G minor almost always used four horns, two in G and two in B - flat alto . Another convention of G minor symphonies observed in Mozart's No. 25 was the choice of E-flat major for the slow movement, with other examples including Haydn's No. 39 and Johann Baptist Wanhal's G minor symphony from before 1771 (Bryan Gm1). </P> <Table> <Tr> <Td> </Td> <Td> This section may contain indiscriminate, excessive, or irrelevant examples . Please improve the article by adding more descriptive text and removing less pertinent examples . See Wikipedia's guide to writing better articles for further suggestions . (June 2016) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section may contain indiscriminate, excessive, or irrelevant examples . Please improve the article by adding more descriptive text and removing less pertinent examples . See Wikipedia's guide to writing better articles for further suggestions . (June 2016) </Td> </Tr>

What is the harmonic minor of g major