in Music, signifies the principal sound or sounds by which others are produced. Thus the lowest for the treble of the harpsichord, besides its octave, will strike an attentive ear with its twelfth above, or G in it, and with its seventeenth above, or E in alt. The C, therefore, is called their generator, the G and E its products or harmonics. But in the approximation of chords or G, its octave below is substituted, which constitutes a fifth from the generator, or lowest C; and for E, is likewise substituted its fifteenth below, which, with the above-mentioned C, forms a third major. To the lowest notes, therefore, exchanged for those in alt by substitution, the denominations of products or harmonics are likewise given, whilst the C retains the name of their generator. But still, according to the system of Tartini, two notes in concord, which when sounded produce a third, may be termed the occurring generators of that third. (See Génération Harmonique, by M. Rameau; also the delineation of Tartini's system, called The Power and Principles of Harmony.)