Image 41 of A new musical grammar; or, The harmonical spectator. Containing all the useful theoretical, practical, and technical parts of musick. Being a new and correct introduction to all the rudiments, terms, and characters, and composition in all its branches. With several scales for musical instruments; and philosophical demonstrations, on the nature of sound. Laid down in so concise and easy a method, as to be understood by the meanest practitioner, whether vocal or instrumental, by way of question and answer