Audio Cookbook

Tonight: MAW at the Mobile Music Symposium + GMS

Tonight (Friday, May 22, 2009) MAW will be projecting at a party for the Mobile Music Symposium outside of the Nomad World Pub in Minneapolis from 9:00 PM to midnight. The artists include Jenny Schmid, Ali Momeni, David Steinman, Andrea Steudel, Rachel James, and Robin Schwartzman. I’ll be providing musical accompaniment using my gestural music sequencer, perhaps creating something similar to the following segment.

GMS Performance Excerpt #3

Odd Percussion Sequence

I rendered this odd percussion sequence from a GMS practice session in Ableton Live.

Odd Percussion Sequence

GMS Performance Excerpt #2

Here’s another unedited excerpt from a recent performance using the GMS. This example contains two live looped layers in a similar range at 124 bpm.

As shown in the photo, I was using a string of patio lights as one of my “light controllers” to create the sequences.

GMS Performance Excerpt #2

MAW Outing GMS Excerpt

Here’s a segment of audio from Wednesday’s MAW outing at Art Institutes Minnesota in downtown Minneapolis. I’m pretty happy with the arpeggiated, melodic loops I’m able to achieve with the right settings and a good light controller using this application. For video documentation of what was happening at the event, please visit minneapolisartonwheels.org.

This video shows me using various light controllers, including a string of patio lights, bike lights, and LED spinning tops to construct compositions using the GMS.

MAW Outing GMS Excerpt

Track Built Around My Favorite GMS Melody

I was going to hold off on posting this piece until I had had a chance to produce it a little bit more. I did cheat and added a four-on-the-floor kick drum pattern to drive it along, but otherwise every loop was generated with “light controllers” using the GMS.

For this piece I used spinning tops with flashing colored LEDs inside. You may recognize the melody from My Favorite GMS Generated Melody So Far.

GMS Practice Piece Number 4

My Favorite GMS Generated Melody So Far

I’ve been spending most of my limited spare time practicing with the GMS in preparation for tomorrow nights performance in Minneapolis. While practicing tonight I produced this melody. I was controlling the sequencer with a blinking led, spinning top and randomly looped this sequence of notes.

I’ve since built a track around it with more loops from the GMS, but it sounds good on its own. The nice thing about this technique is that everything I capture is MIDI, so if I get a good melody, but don’t like the sound, it’s easy to change the timbre, tempo, transposition, etc. In other words, beyond being a performance tool, I can use it effectively for composition and idea gathering.

My Favorite GMS Generated Melody So Far

GMS Practice Track Number 3

I’ve almost finished with my initial round of tweaking and bug fixing on the GMS, so I’ve finally been able to put a bit more time into actually using the software for its intended purpose. My most recent work with it involves a companion document in Ableton Live that loads a number of virtual instruments into about nine separate MIDI tracks. Ableton provides the external sync via the Apple IAC (Inter-Application Communication) drivers. In turn, the GMS sends MIDI note on and off data to the instruments in Ableton. Using this method I can live loop on various tracks and build a multi-timbral composition in real-time. Here’s an example for a recent practice session.

GMS Practice Practice Track Number 3

GMS Practice Track Number 2

This recent practice session illustrates the use of external sync and live looping of MIDI data captured from the GMS in Ableton Live.

GMS Practice Track 2

GMS Practice Track Number 1

Here’s another sample of a practice session using the GMS and Ableton Live.

GMS Practice Track 1

GMS Performance in Downtown Minneapolis

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