Longa (music) Longa (music) A longa (pl. "longe" or "longae"), long, quadruple note (Am.), or quadruple whole note is a musical note that could be either twice or three times as long as a breve (Am.: double whole note, or double note), four or six times as long as a semibreve (Am.: whole note), that appears in early music. The number of breves in a long was determined by the "modus" or "mode" of a passage. Sections in perfect mode used three breves to the long while sections in imperfect mode used two breves to the long. Imperfect longs, worth two breves,
Time value of money the contributions of "FV", the value of cash flow at time "t": Note that this series can be summed for a given value of "n", or when "n" is ∞. This is a very general formula, which leads to several important special cases given below. In this case the cash flow values remain the same throughout the "n" periods. The present value of an annuity (PVA) formula has four variables, each of which can be solved for by numerical methods: To get the PV of an annuity due, multiply the above equation by (1 + "i"). In this case each