Musical note standardised at 440 Hz, lying in the octave containing notes from C (middle C) to B. The lowest note on most pianos is A, the highest C. The MIDI system for electronic musical instruments and computers uses a straight count starting with note 0 for C at 8.1758 Hz up to note 127 for G at 12,544 Hz. A written note can also have a note value, a code that determines the note's relative duration. In order of halving duration, they are: double note (breve); whole note (semibreve); half note (minim); quarter note (crotchet); eighth note (quaver); sixteenth note (semiquaver).;
Credit note or not as per specification; customers may also receive one if they paid too much money, or if they had been overcharged. Credit note A credit note or credit memorandum (memo) is a commercial document issued by a seller to a buyer. Credit notes act as a Source document for the Sales return journal. In other words the credit note is evidence of the reduction in sales. It can also be a document from a bank to a depositor to indicate the depositor's balance is being in event other than a deposit, such as the collection by the bank of