GMS Performance in Downtown Minneapolis

Posted on May 8, 2009 by John C.S. Keston

I’ve been scheduled to perform live using my GMS this Wednesday night, May 13, 2009. I’ll be projecting against the Western wall of Art Institutes International. The reactive music will be amplified along with the projection as it is produced in real-time. Here’s the publicity statement that went out about the event.

John Keston will be performing using his gestural music sequencer or GMS on Wednesday, May 13, 2009 in the parking lot next to Art Institutes International Minnesota, 15 South 9th Street, Minneapolis, Minnesota. The GMS was written in Processing.org by Ai instructor, Unearthed Music recording artist, and AudioCookbook.org founder John Keston. His tool analyzes video input and converts it into a sequence of musical information in real-time. The live video image will be projected on the building while the musical response to the images is amplified through a sound system. For more information about the GMS visit audiocookbook.org/tag/gms/. All Ai students, staff, alumni, and the public are welcome to attend this free performance. A drawing will be held (for WDIM students only) giving away two passes to this years Flashbelt conference.

Here’s a segment from a practice session today to give you an idea about what sort of output the GMS can produce. All of the percussion, melodic lines, and bass were generated by the sequencer, then live looped to produce the results.

GMS Practice Piece in C Sharp

Electrical Crackling Sound with the GMS

Posted on April 27, 2009 by John C.S. Keston

This electrical crackling sound was made with the GMS while the tempo was set quite high and the note duration probability distributions were set to favor two adjacent values. The speed that the notes were played made the frequency of playing the notes more audible than the pitch of the individual sounds themselves. The randomized durations at that speed created a sputtering quality that, to my ear, sounds very similar to high voltage electrical sparks. Interestingly it turns out that the GMS might be useful for sound design as well as a composition and performance tool.

Electrical Sound

GMS Drum Solo

Posted on April 26, 2009 by John C.S. Keston

To create this silliness I set the GMS to play the drums on the built in Java Sound Synthesizer. I adjusted the tempo and duration probabilities to something ridiculous then captured the output on my PCM-D50. Since this experiment I have made a few more that are even more high speed and scattered. Perhaps I’ll post more examples of this nature. I have rare instances of longer durations inabled in the probability distribution, so as you’re listening, every so often you may think that it’s over (finally!) when suddenly it starts up again with obnoxiousness.

GMS Drum Solo

Grant Muller’s Game of Life Sequencer

Posted on April 24, 2009 by John C.S. Keston

You might remember me posting an article called Three Phase Oscillator produced using a Ruin & Wesen tutorial on creating a “game of life” sequencer. Well, Grant Muller has run with the idea and created a robust, fully featured, multitimbral sequencing application. I have just started scratching the surface of possibilities that his tool offers. Features include a long list of possible scales, including all the modes, and Turkish to name a few. What I like most is that six versions of the sequencer run in tandem so that you can have separate voices on different MIDI channels and / or devices. For more information, or to download his sequencer visit Grant Muller’s site. Here’s a short example I made with the Game of Life Sequencer Bank Beta.

GOL Recording Part I

Sixty Fourth Notes from Twenty BPM to One Thousand and Back

Posted on April 23, 2009 by John C.S. Keston

I’ve already posted a few glitchy sounds created by the GMS in it’s various states of development. Most of them created by some bug, which I love. Serendipity never looses its charm for me. This sound is more deliberate and illustrates how sixty fourth notes sound played on a basic piano sample from twenty beats per minute all the up to nine-hundred and ninety-nine BPM. I’m not sure how accurately the GMS is reproducing these durations at tempos greater than five-hundred beats per minutes, but it sounds pretty wicked anyway.