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Couplers and unison off switches

A coupler allows the stops of a certain division to be played using another division’s keyboard. On the dedicated Couplers Page you can find a vast range of coupling options, as described below.


In Melbourne Town Hall Pipe Organ Samples, certain couplers can be converted to Bass or Melody couplers.
Bass couplers play only the lowest note of the coupled division, Melody will play only the highest. This functionality is also available for the reversed couplers. To turn a coupler to a Bass or Melody coupler, navigate to the Couplers Page and press the button B or M for the corresponding coupler. Only one of them can be selected at a time.
By selecting a Bass or Melody coupler, the corresponding coupler will turn yellow on the Center Page.


Transposing couplers are coupling two divisions in a way the source is transposed either an octave up or down. For example, the Octave switch for ‘Solo to Swell’ coupler means the Solo is coupled to the Swell one octave upwards transposed; so playing a C4 note on the Swell will play the C5 of Solo also. Similarly, Sub Octave means that the Solo’s one octave lower transposed sounds will be added to the Swell.


Self-transposing couplers work within a division. Turning on Swell Sub Octave for example and playing a C4 note on the Swell will play the sounds of Swell on C4 and C3 as well.
Unison off will turn off the standard voices of the division, allowing only the couplers, either from other works or self-transposing ones to play. For the example, when Swell Octave is used in conjunction with the Unison off switch, playing a C4 will give the sound of C5.


For compatibility reasons and for setups having no organ pedal, reversed couplers are available so that you can play pedal notes on the keyboard. On the Couplers Page, a button ‘Spl’ converts the pedal-to-manual coupler to a split reversed coupler, so the lower part of the keyboard will play the selected pedal stops only.
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