Sonate-fantaisie no. 1 for violin and piano, Désespérance, Despair
Thesis: De Mattos, Alysio. 1993. The sonatas for violin and piano of Heitor Villa-Lobos. Thesis (Mus. D.)--Florida State University, 1993.
See this video of the Doppio Ensemble playing the first movement of the first Violin Sonate-fantaisie.
Violin & Piano
Villa-Lobos, H. 1929. Première sonate-fantaisie: désespérance : pour piano et violon. Paris: Eschig. This score may be available on Interlibrary Loan from your local public library.
There are ten records in the Villa-Lobos Concerts database (June 2009).