are repeated before the twelfth tone is first heard). The opening melody is thirty-nine bars long and presents all four modes of the tone row in the following order: basic set, inversion of retrograde, retrograde, and inversion. Both of the inversions are transposed. Four different types of row partitioning are evident: linear, by dyads or tetrachords, free, and by trichords. Linear presentations are ordered, strict presentations of either complete rows or component hexachords, and dominate the Andante and Giocoso movements. The second type symmetrically divides the twelve-tone aggregate into either six dyads or three tetrachords, and is found in the Molto allegro. The third type consists of irregular presentations of segments or fragments of the row, and is used mainly in the Adagio section. The last type, trichordal partitioning, is found throughout the concerto, and is a two-dimensional design created from the discrete trichords of complexes made from pairs of inversionally combinatorial rows. Programmatic aspects The piece is a late work, written in America. The manuscript contains markings at the beginning of each of the four movements, suggesting an autobiographical connection between this work and the composer, as well as German refugees in general. The markings are "Life was so easy", "Suddenly hatred broke out", "A grave situation was created", and "But life goes on", each matched with a suitable expression in the music. These markings were not included in the final published version, as Schoenberg disapproved of this kind of fixed musical interpretation: they were to guide his composition of the work, and not to provide a programmatic reference for the listener. Neoclassicism and form Former Schoenberg student Lou Harrison said, "One of the major joys ... is in the structure of the phrases. You know when you are hearing a theme, a building or answering phrase, a development or a coda. There is no swerving from the form-building nature of these classical phrases. The pleasure to be had from listening to them is the same that one has from hearing the large forms of Mozart. ... This is a feeling too seldom communicated in contemporary music, in much of which the most obvious formal considerations are not evident at all. ... The nature of his knowledge in this respect, perhaps more than anything else, places him in the position of torch-bearer to tradition in the vital and developing sense". The concerto has been compared with the music of