Counterpoint has more than one melody at the same time. This tends to change the rules for using and developing melodies, so the terms used to talk about contrapuntal melodies are different, too. For example, the melodic idea that is most important in a fugue is called its subject. Like a motif, a subject has often changed when it reappears, sounding higher or lower, for example, or faster or slower. For more on the subject (pun intended), please see Counterpoint.
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