Sentence:  This work is divided into two parts, "logography", or universal writing of speech, and <WSD>"musicography</WSD>", or symbolical writing in music; the first of which offers a new set of phonetic characters as a substitute for our degenerated logographic system, and the second a reformation of our musical notation; a short-hand form of each system being joined to it. 
Meaning of the word marked with <WSD> tags:  The art or science of writing (music) and of musical (notation).