A work that definitely enriches the world's literature for 3 horns and trombone....
This piece makes reference to the importance of wind instruments in the choro-ensemble, though Prof. Tarasti notes that the music Villa-Lobos heard in Paris earlier in the decade (Poulenc, Krenek, Busoni, Milhaud, jazz) was likely in Villa's mind as well.
3 horns & 1 trombone
Villa-Lobos, Heitor. 1928. Choros (No. 4), pour trois cors et un trombone. Paris: Éditions Max Eschig.
This score should be available in most larger academic libraries, or through Interlibrary Loan from your local library.
This work is finally beginning to show up on concert programs - there are nine records in the database as of September 2011.