FUGUE [fyoog]
noun
Music. a polyphonic composition based upon one, two, or more
themes, which are enunciated by several voices or parts in turn,
subjected to contrapuntal treatment, and gradually built up into a
complex form having somewhat distinct divisions or stages of
development and a marked climax at the end.
Psychiatry. a period during which a person suffers from loss of
memory, often begins a new life, and, upon recovery, remembers
nothing of the amnesic phase.