control issues.

(n.b., If you just want to see and hear the Hot Hand in action, scroll to the video at the bottom of the page)

I have control issues.  Guitarists have it rough in the all-digital world.  Both hands are full with the playing of the thing.  The foot (two is harder) is useful on stompboxes and wah pedals, but not as easy for the digital world, where effects can be free but seldom come in a box.

Hot Hand
Hot Hand

Enter into the arena the SourceAudio Hot Hand,
a little box about a third of the size of a flash drive attached to a
rubber strap that you can wrap around what you wish, default being a
finger.  It has the accelerometer built in and sends three signals, one
for each axis of the three dimension of the space we live in.  Move it
along an axis and it sends out midi control changes which can be pumped
into the digital guitar rig and attached to anything a midi signal can
control.  It takes some calibrating and “fingering” out to actually
control the thing, but when it works, you can flail your picking hand
around in the air or move it subtly, both of which guitarists have been
known to do, and the midi flows to whatever you hook it up to. I opted
for the obvious here and hooked it up to filter cutoffs (three of them),
resonance (three of those too), distortion amount (one on the Z axis,
which takes the most conscious effort to get off of zero), and filter

After messing about the whole day I got a mostly good take that
demonstrates some of the possibilities for expression in the Hot Hand.
 The first part sets up a loop with the instruments modulated by the
ring, then some lead over that with some extra expression, and a drum
drop where I use the Hot Hand to mangle the loop full time without
playing guitar, then on to the glorious finish where I heroically try to
stomp out all the loops and drums at once.

I am really enjoying the thing so far, but it will take more
calibrating and more learning on my part to get expressive control over
it.  I relearned what pitch, roll, and yaw are to try to figure it out,
but it does not exactly work on those principles.  Instead it is more
like a carpenter’s level, the little tubes with the bubbles in them, and
I have to figure out how to control where the bubbles float to, all
three at once.

I had much fun, and I hope you enjoy the video!  

Some Background . . .

Expression is my dream, a way of manipulating tone and timbre on the guitar as complex and rewarding as the fingers/ frets/ wood/ amp/ speakers/ ears combo.  Textures, spaces, shapes: I have a little synesthesia in my dreams of expressive control. There is a remarkable amount of expressive power packed into stringed instruments. MIDI controllers, with their one parameter at a time functioning, seem rigid in comparison.  Sure tones can be shifted about, but real expression remains elusive — though not impossible, given that the instrument itself has a lot of expressive wallop already.

I have a couple of useful foot controllers.  One is the venerable Behringer FCB1010, which is a bit of a bear to program and somewhat big to carry around.  If I am going to replace my amp with a laptop, I don’t want a giant floorboard.


I recently got Keith McMillen’s SoftStep as a replacement.  It is small, sleek, and has really neat blue and red LED lighting so you can see what you are doing.  The SoftStep is used to control the drums in the video.  It works well for triggering, though the “steps” are a little small for feet with shoes on.  It has the ability to send several different continuous controller midi signals, but in practice they are not that easy to control with foot pressure.  It does have a plug for a good old expression pedal though.  Both it and the Behringer are pretty involved to program, but I have to give the SoftStep the edge there, even though the software crashes every time you close it and fails to save the midi device it is supposed to send to.


I also have a vPedal transcription pedal set to spit out mouse clicks.  That works well if you can move the mouse where you are going to click next, which can be tricky, but having a mouse click handy is useful. Its hella loud in the mechanics though.  I have a stealth switch II that is a bit quieter, but does not trigger until you release it, which is difficult but interesting for timing — I have to pull the time out of it instead of stomping it into it.  That gets used for my linux mouseclick needs rather than on the main music laptop — I am one of those odd non-Ableton, non-Mac electronic musicians.  I use a combination of Plogue Bidule with a little bit of Max MSP here and there with a few hundred (not kidding) VSTs in Windows, with Linux when I need realtime kernel and gnarly guitar sounds via Guitarix and Jack. (down to 64 samples latency with this combo on a five year old computer — I can’t hear it so much as feel it.  The low latency makes playing seem a bit more responsive)

I rigged up a Wacom Bamboo pen tablet to spit out OSC and Midi, and it sounds cool and is quite expressive, but the pen takes a hand, so it mostly gets used as its own instrument, a sort of theremin on steroids.  I have a MAX patch that can control MIDI though video gestures, like a Kinect but without all the gizmos, but it is not done yet, and pretty much has to be run by itself.  No guitar signal there yet, though I am working on it.

Envelope followers are helpful but limited, and LFOs sound too regular when they are regular and too random when randomized, even though I use them a lot.  They are prefab instead of expressive.  I have explored some fractal and game-of-life controllers (like in this song), but they are too wild for everyday use.  All of this still sounds more toward the artificial end of artificial intelligence.

Mercurial STC-1000

I have two hand controllers, the underrated and out-of-business Mercurial STC-1000 touch surface and a Korg nanoKontrol, but when I touch the touchpad or twiddle those knobs , I can only play guitar with one hand.  I often tried to work out a way to get an accelorometer attached to a guitar that then produced MIDI or OSC, even buying a WIIMote when I have no Wii in order to get it to send midi via GlovePie.  Never figured that one out in any useful way, and the WiiMote would have to be in a hand or strapped on to the guitar somehow.  An out-of-business company called FreePlayer almost got it right, but they could not get a wireless one to market and it required modding the guitar and a USB cable on the guitar, which was  a no go for me.

As usual, lots more music is on the blog and on the waydio at way music.  Pop it out and listen to it in the background.