
DR. REX LOOP PLAYER
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Creating Sequencer Notes
To be able to make your REX loop start at the same time as other sequencer or pat-
tern data, you first have to create sequencer notes from the slices:
1. Select the sequencer track connected to the Dr.Rex device.
2. Set the left and right locators to encompass the section you want to fill with
REX notes.
3. Click the To Track button on the Dr.Rex panel.
Now, the program will create clips containing a note for each slice, positioned accord-
ing to the timing of the slices. The notes will be pitched in semitone steps, with the
first note on C1, the second on C#1 and so on, with one pitch for each slice. If the
area between the locators is longer than the loop length, the clip containing the loop
notes will be repeated to fill out the loop.
The loop clips in the Arrange View...
...and in the Edit View.
Activating playback in the sequencer will now play back the notes on the sequencer
track. These in turn will play back the slices in the Dr.Rex device, in the correct order
and with the original timing maintained. Now the fun begins!
• You can change the groove in the loop by quantizing or moving notes.
• You can transpose notes to change the order of the slices on playback.
• You can use the Alter Notes function (see page 91) to scramble the loop notes -
without destroying the original loop timing.
• You can remove and draw new notes, creating any kind of variation.
• You can use the User Groove function to apply the rhythmic feel of the loop to
notes on other sequencer tracks.
For details about editing in the sequencer, see page 78.
! Note that if you have created sequencer notes from a REX file, you can-
not load a new REX file into Dr.Rex and play it from the existing track.
Well, you can, but it will not play back properly. If you have created notes
in this way, and want to change the REX file, first delete the notes, then
use the “To Track” command again after having loaded the new REX file.
You can also export the REX file as a MIDI file, as described on page 370.
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