The research was divided into three stages:
- The first stage involved analysis of catalogues authored by the
composer himself, drawing up an initial list of his works that would
serve as a reference for the final catalogue.
- The second stage involved researching archives of the Fundação
Biblioteca Nacional do Rio de Janeiro, the Biblioteca do Centro
Cultural São Paulo, the Acervo Mozart de Araújo, in the Centro Cultural
Banco do Brasil, Rio de Janeiro, and the personal archive of Jane
Guerra-Peixe; all available documents were analyzed.
- The third stage involved cross-referencing the initial information
from the artist’s own catalogues with that obtained in the field
The following hierarchy was applied to the cataloguing of information:
first consideration was given to handwritten and signed documents,
then to copies of handwritten documents signed by the artist, then
to publications, and lastly, where these were unavailable, to photocopies.
To indicate the location of the documents, in addition to these
criteria, preference was given to documents in better condition.
In addition to considering the conventional bibliographical entries,
notes were included that the artist himself wrote about the characteristics
and / or special features of each composition; when necessary, the
cataloguer added notes as well.
Some sections of music were highlighted and made available through
MIDI, providing examples of compositional motifs.