I have noticed that some recent CDs include a catalog number for the
works of Villa-Lobos. They are designated by a "W." but I can't find
any info relating to this catalog numbering system. The New Grove lists
"S. Wright: 'Villa-Lobos: the Formation of his Style' Soundings (1979-80)"
in the bibliography. My guess is that this may be the same person who
put together the thematic catalog. Can anyone elucidate?