Fugue, in general, is a polyphonic composition that introduces the subject of a melodic theme by a voice or a part, to then be taken and refined by others.
Bach's The Art of Fugue is considered to be a masterpiece of music, divided into seven groups. Contrapunctus I is one of the simple figures, and in it, four voices are introduced. <u>First heard is the second-highest voice from the top also known as </u><em><u>alto</u></em><u>.</u>
