Gestural Music Sequencer from Unearthed Music on Vimeo.

Something as simple as remapping a single knob can give you new musical ideas. So expand that to entire gestures and live video input, and you can help push your performance in new directions and out of old habits. That’s why it’s always great to see projects like the Gestural Music Sequencer.

Built entirely in free tools – tools fairly friendly even to non-coders – the GMS lets composer and musician John Keston explore new ideas through gestures captured in a video stream. It’s easier to see than to talk about, so check out the just-completed documentary short by Josh Klos, with the aid of Julie Kistler and Brian Smith. (And yes, documentation makes a huge difference; we’d love to see more of this stuff!)

The ingredients:

• Processing, the free, multiplatform coding environment [site | cdmu tag | cdmo tag]
• controlP5, a lovely, light, quick-and-dirty library for UI controls
• Ableton Live – though you could substitute other software via MIDI, Live makes a nice, familiar interactive music engine

The translation of music from something largely invisible to a physical object is oddly beautiful, even when imperfect. That’s part of why we’re working on the Tangible Interface Hackday – less than 48 hours away now.

Here are a couple of additional sources of inspiration as we prepare.

At bottom, Guy John has made a sequencer out of one of the world’s most ancient games, Go. Over two millenia ago, Chinese people were passing the hours playing this game, so it’s an incredible way of connecting our passtimes today with the leisure time of our ancient ancestors – and a sign that gaming is a part of culture that endures. It’s fitting, too, as a lot of computer musical interfaces can be thought of as games. This particular game uses Max/MSP/Jitter and the CV Jitter externals for image analysis, then translates the game into a grid. Guy’s idea is fairly early in development, so I actually think you could go all sorts of different directions with this basic concept. (As seen in Hack a Day at the end of last year.)

At top, the Graphite Sequencer translates optical images made in the electricity-conducting material to sound in a simple turntable. It’s lovely seeing these patterns as sound objects, especially since usually we go the other way (trying to find patterns to affix to sounds). The same basic graphite-conducting process is used in the business card PAiA kit we showed at a past Handmade Music, as well as the Drawdio pencil (based on the same circuit).

Graphite Sequencer (2006), as seen recently via the blog of the fabulous-looking Montreal Elektra Festival

I’d love to see people continue to combine these fairly basic analog-style techniques – or thousands-year-old games – with the newer digital approach. Let us know what you come up with, creative folk.

For those of you longing to mutate beats like so many promiscuous Petri Disk bacteria, programmer Bret Truchan is a kindred spirit. Bret has created a series of instant experimental classics for the Nintendo DS: glitchDS, a cellular automaton music sequencer, repeaterDS, a visual sample mangler, and cellDS, a grid-based sequencer you can script in Lua.

The Nintendo DS is portable and cute, but it’s not normally open to running software without the Nintendo Seal of Quality. (Insert snickers here.) To run Bret’s software, you need specialized hardware that fools the DS into running software. The DS isn’t entirely stable when it comes to things like timing, either, and it doesn’t have the flexibility of computers.

Enter the netbook. The netbook is nearly as portable, completely open to running whatever you like on Windows or Linux, and boasts easy USB connectivity, a big screen, and … well, you know, all the things you like about laptops. When it comes to musical productivity, much as I love the DS, the netbook has a whole lot going for it, and still has that added ultra-portability that makes you feel you can make music anywhere.

Bret recently made the jump to desktop software with Quotile, a step sequencer you can live-code for mighty morphing beats. Quotile is cool, but for many, glitchDS was the star. Now you can run glitchDS anywhere – just the job for a laptop you were going to retire, or that new netbook.

Not Sequencing, Glitch Sequencing

Glitch-sequencer is a sequencer, so it needs to either talk to a software synth or external hardware. Bret likes to hook it up to his machinedrum and monomachine. Our own Handmade Music event was the (unofficial) first public outing of the software, and included an HP netbook and the machinedrum, which makes for a sweet, mobile combination.

Despite the appearance of a grid and sequences of levels, this isn’t an app that works like a conventional sequencer. Here’s the basic breakdown:

• Cellular Automata via a seed + playback grid
• Trigger and value sequencers to determine which MIDI events the organically-generated mutations produce
• Pattern length, clock division settings for setting metric values
• Sync settings

Sequencers by definition traditionally lock musical patterns into repetitive, unchanging blocks of time. But a new generation of generative sequencers can instead form organic patterns that change and transform.

Nodal is a totally free-as-in-beer (closed-source) sequencer for composing music. (A license is needed for commercial use.) As the name implies, it uses a matrix of nodes to represent musical structure. The best way to understand what that means exactly is to check out the examples and give the app a shot, but is good fun – and capable of creating some lovely, unusual musical textures.

The good news now is that if you’re on Windows XP/Vista, you’re no longer left out of the fun: the app now runs Universal on Mac and on Windows, as well.

Aside from Windows support, also new in version 1.1:

• New, more polished UI
• Keyboard shortcuts
• Internal MIDI synth support on Windows

It does sound as though Nodal may not remain free-as-in-beer, but with some significant updates coming later this year will move into the cheap-as-in-beer territory. Stay tuned.

Composer and co-developer Peter Mcilwain sends along the video here with a live improvisation made in the software. It’s a bit Minimalist-influenced, but shows how you can use Nodal to drive some musical inspiration. Peter also explains just what Nodal means musically to him and the small but growing collection of users taking advantage of Nodal’s paradigm:

What happens when you put all the digital and electronic tools you love together into one groove session? I expect it probably looks something like this video. Welcome to the new digital music age: DIY electronics, vintage digital tech (Game Boys), and modern computer tech (Monome as Arduinome clone, Max/MSP, and shiny MacBook) all coexist. And a fair bit of what you see if a modern hybrid of old and new paradigms, like the thoroughly modernized Tracker Renoise. Thomas Margolf says “Greetings from Rotterdam” and writes,

We made a first Jam using the new GorF step-sequencer, Arduinome, max msp patch ‘Soyuz’, a Gameboy running LittleSoundDJ, LSDJMC2 Gameboy Midi-Interface, Renoise, Ableton Live and a Nord Micro-Modular. It’s the first session with a fresh soldered GorF.

Lovely stuff. Keep on soldering and jammin’, folks. Okay, tagging this story is going to take … a lot of tags.