As Ruth Crawford's work is filled with the pungent echoes of the half-step and its partner, the major seventh, Ingolf Dahl turns naturally to the modal flavor of the whole-step and minor seventh. This huge work, a 20th-century classic,is in four movements: the first is an exciting sonata-allegro exposition marked Allegro energico, which is followed by two interior fantasies on the openning theme of the sonata-allegro movement, and is copped by a lyrical Adogio cantabile e Coda, which gently concludes the work with tender reflecitions of the cantabile second theme of the first movement. 1981 piano competition, studios, colleges, libraries, professional. Difficult theme of thefirst movement. 1981 piano competition, studios, colleges, libraries, professional. Difficult.