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Nicholas Keller
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Using Key Follow/Tracking with a Modular
Key
Tracking/Follow basics: We've
all seen Key Tracking or Key Follow on a synthesizer's filter section,
right?   An analog synth's keyboard creates a
voltage which is used to play the oscillators in tune up and down the
keys.  Applying this voltage the the...

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Trigger in Mod for TR-9090
I've been building Trevor Page's TR-9090 Drum Synth, a MIDI-controlled clone of the voice circuits of the Roland TR-909.  Since finishing the main build and testing the voices, I started adding whatever mods I could find or think up.   One feature I wanted ...

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More A-155 Tricks: A Way to Shuffle Your Patterns
    Continued from my previous A-155 posts, but applicable to any analog sequencer being driven by an external clock...     Another difference between the current range of Doepfer Sequencers is the ability to apply a shuffled groove to your pattern.  The MA...

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Input to Comparator : a mod for the Doepfer A-119 and A-142
While working on what will hopefully be my next post , I was aware that I still do not have a dedicated comparator module in my system.  However, I do have several modules which contain internal comparators.   So, I decided to modify some of these to allow ...

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