A postscript to Dr. Smith's Harmonics, upon the changeable harpsichord: Which being supplied with all the useful flat and sharp sounds and tuned in the best manner, is made as harmonious as possible: and yet the execution of music upon this perfect instru

Postscript to Dr. Smith's Harmonics, upon the changeable harpsichord: Which being supplied with all the useful flat and sharp sounds and tuned in the best manner, is made as harmonious as possible: and yet the execution of music upon this perfect instru (Online)