CAKEWALK SONAR User Manual page 569

If your master keyboard now seems to double notes (they sound thicker), or if you can play
only one half as many notes at once, first make sure that no MIDI channel is being used by
more than one of your MIDI devices. If no MIDI channel is assigned to duplicate devices and
you hear doubling or only half as many notes as you should, see "My Keyboard Doubles
Every Note I Play" on page 562.
If Your Keyboard Doesn't Have a MIDI Thru Jack
If your keyboard has only two MIDI jacks—In and Out—or if you have only one keyboard,
use the following diagrams instead:
Each MIDI device should be set to a unique MIDI channel or range of channels to avoid note-
doubling. Refer to the manuals for your MIDI devices for information on how to set their
MIDI channels.
If your master keyboard now seems to double notes (they sound thicker), or if you can play
only one half as many at once, first make sure that no MIDI channel is being used by more
than one of your MIDI devices. If no MIDI channel is assigned to duplicate devices and you
hear doubling or only half as many notes as you should, see "My Keyboard Doubles Every
Note I Play" on page 562.
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