The Digital Old Books Collection at Strasbourg University is a fantastic resource of primary sources. Here you’ll find books on all subjects. Check out the beaux-arts section to read tracts on architecture, sculpture, art and music. Here are some choice pickings from the music section: Yummy! (Only the first volume of each is given)
Burney, Charles, The present state of music in Germany, the Netherlands, and United Provinces (1775)
Forkel, Johann Nikolaus, Musikalisch-kritische Bibliothek (1778),
Allgemeine Geschichte der Musik (1788);
Koch, Heinrich Christoph, Versuch einer Anleitung zur Composition (1782);
La Borde, Jean-Benjamin de Essai sur la musique ancienne et moderne (1782)
Martini, Giovanni Battista, Storia della musica (1757);
Esemplare o sia saggio fondamentale pratico di contrappunto sopra il canto fermo, (1774)
Petri, Johann Samuel, Anleitung zur praktischen Musik. (1782);
Riepel, Joseph, Anfangsgründe zur musicalischen Setzkunst (1754);
Harmonisches Syllbenmass Dichtern melodischer Werke gewidmet., (1776);
