Unfolding, Ausfaltung, The technique of making horizontal (melodic) one or more intervals that are conceptually simultaneous at deeper levels. A double unfolding involves a pair of intervals. Unfoldings can take place on many different structural levels.
The example illustrates two instances of unfolding in Part A of Variation 16. The first unfolds D and B$ of I and the second unfolds C and F of V. In each case the upper note is the primary melodic tone.