While this move by the IRS does seem to go against a push for fuel efficient cars by the government, there is an economic policy behind it, helping to promote purchases of large trucks by businesses. The new rules apply to vehicles bought after Sept.8 2010 and up until Jan. 1, 2012.
An overtone is any frequency higher than the fundamental frequency of a sound.Using the model of Fourier analysis, the fundamental and the overtones together are called partials.n barbershop music, the word overtone is often used in a related but particular manner. It refers to a psychoacoustic effect in which a listener hears an audible pitch that is higher than, and different from, the fundamentals of the four pitches being sung by the quartet.
For most string instruments and other long and thin instruments such as a bassoon, the first few overtones are quite close to integer multiples of the fundamental frequency, producing an approximation to a harmonic series. Thus, in music, overtones are often called harmonics.Depending upon how the string is plucked or bowed, different overtones can be emphasized. However, some overtones in some instruments may not be of a close integer multiplication of the fundamental frequency, thus causing a small dissonance.n barbershop music, the word overtone is often used in a related but particular manner. It refers to a psychoacoustic effect in which a listener hears an audible pitch that is higher than, and different from, the fundamentals of the four pitches being sung by the quartet.