Fifth installment, Tanzscene, from Schoenberg’s “Serenade” performed by students and faculty of the University of Illinois, Bill DeFotis, conductor:

I am sure many have noticed this before but I noticed it while I was making the mp3. When I heard the final three chords I distinctly heard the ghost of Petrushka:

The first chord at measure 199 is a “Petrushka” chord (D^b +11) voiced in a cluster, followed by a mutated “Petrushka” chord, that is, rather than two major chords a tritone apart (D^b major and G major) it is two minor chords a tritone apart (E^b minor and A minor). The final chord is the first chord but voiced differently. For theory geeks, the two chords are complimentary hexachords.