sentences:  The miracle is that Shostakovich succeeded, and constructed a distinctive and indestructible work..." He also notes that the concerto contains a strong element of parody, beginning with a reference to Beethoven's "Appassionata" Sonata, and ending with "an uproarious quotation" of Beethoven's "Rage Over a Lost Penny" and a slice of Haydn's D major Piano Sonata.The last movement's final cadenza is introduced with exactly the same trill as in the final bars of Beethoven's Piano Concerto No.3 cadenza.