Double whole note Double whole note In music, a double whole note (American), breve (international), or double note (; ) is a note lasting two times as long as a whole note (or "semibreve"). It is the second-longest note value still in use in modern music notation (; ). In medieval mensural notation, the "brevis" was one of the shortest note lengths in use —hence its name, which is the Latin etymon of "brief". In "perfect" rhythmic mode, the brevis was a third of a "longa", or in "imperfect" mode, half a "longa" . In modern notation, a breve is commonly represented in
Promissory note a bank and payable to bearer on demand. Mortgage notes are another prominent example. If the promissory note is unconditional and readily saleable, it is called a negotiable instrument. Demand promissory notes are notes that do not carry a specific maturity date, but are due on demand of the lender. Usually the lender will only give the borrower a few days' notice before the payment is due. Promissory notes may be used in combination with security agreements. For example, a promissory note may be used in combination with a mortgage, in which case it is called a mortgage note. In