It is true of Egyptian history that the Old Kingdom was the time of the construction of the great pyramids. This period was the time that the Egyptian civilization was at its peak.
Mandolin is a member of lute family. A mandolin commonly has 4 courses of doubled metal strings that are tuned in unison (total of 8 strings). There are also course versions that have 5 metal strings (total of 10 strings) and 6 metal strings (total of 12 strings).
A fugue is made up of expositions and episodes so there would be free polyphonic materials called episodes.