The answer is Baroque music. This has been since 19th century in Western Europe. This might be strange in today's music. It is now called convenient catch-all and considered one of the diverse period.Hope this is the answer and would be of big help.
F is the submediant degree of the major scale whose relative minor has a signature of four flats. 6. G is ^7 in the natural form of the minor scale whose parallel major has a signature of three sharps.
