Monday, March 12, 2012

Triggering glides with the RPG-8



I was playing with the arpeggiator in Reason and the gate length. As you may know, turning the gate length all the way makes RPG-8 send tied notes to your synth which is nice for legato sounds. So I thought it would be nice to trigger tied notes occasionally to get legatos in lead and base lines. This would make it easy to play stuff like proper acid base lines live from the keyboard.

Right, gate length has a cv modulation on the back. This should only be the case of hooking up a curve matrix with a suitable pattern. Apparently this doesn't work. It looks like the cv input doesn't modulate the gate length knob directly and maxing out the gate length in this manner does only that :( and no tied notes.

After asking around on the Propheads forum I found a workaround. Sending the cv signal through the programmer section of a combinator :D The combinator appears to modify the knob directly as regular automation which triggers tied notes when it is maxed out.

So here it is:

First set up the RPG-8 as you like it and set up a unipolar curve matrix with a pattern. Note that you set the gate length directly in the pattern so you need a suitable "rest" length for untied notes. Put these units in a combinator along with your synth.



Hook up the curve cv out from the matrix to a cv input on the combinator and move the cv trimpot to max.

In the combinator programmer connect your cv in to the RPG-8 gate length with a 0-127 range.


And off it goes :D If you take a look at the matrix unit I've set up a pattern with some uneven tie lengths with 1/8 triplets to give the triggering a bit of unpredictability and groove. With a bit of comp from the Reason factory bank it sounds like this. You can check out the project file here.

-a