C. F. Weitzmann’s Hand-Buch der Theorie der Musik is a German handbook of music theory from 1888. François-Auguste Gevaert’s history and theory of ancient music works through the systems, notation and instruments of Greece and Rome. Hugh Tracey’s handbook explains how to run a library of African music transcriptions, Fernando Ortiz traced the African roots of Cuba’s folk music, and in 1928 Rubén M. Campos surveyed four centuries of Mexican musical traditions, with folk melodies and scores.

C. F. Weitzmann’s handbook, edited by Felix Schmidt.

François-Auguste Gevaert’s history and theory of ancient music, in two volumes.

A handbook for Hugh Tracey’s African Music Transcription Library.

Fernando Ortiz’s study, in its revised 1965 second edition.

Rubén M. Campos’s 1928 study, with folk melodies, photographs and scores.
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