Double whole note the "brevis" was to be considered the unit of time ("tactus"), instead of the usual "semibrevis". The old symbol , used as an alternative to the numerical proportion 2:1 in mensural notation, is carried over into modern notational practice to indicate a smaller relative value per note shape. It is normally used for music in a relatively quick tempo, where it indicates two minim (half note) beats in a bar of four crotchets (quarter notes), while is the equivalent of , with four crotchet beats . Double whole note In music, a double whole note (American), breve (international), or double
Australian two-dollar note a gold-coloured coin in 1988, due to the longer service life and cost effectiveness of coins. These notes can still be redeemed at face value by the Reserve Bank of Australia and most commercial banks, but numismatics and note collectors may pay a higher price for these notes depending on age and condition. Australian two-dollar note The Australian two-dollar note was introduced in 1966 due to decimalisation, to replace the £1 note which had similar green colouration. The note was issued from its introduction in 1966 until its replacement by the two dollar coin in 1988. The paper design included