HYDRAMORPH™ Morphing Editor for the ASM Hydrasynth

During self-isolation due to COVID-19 my teaching has moved online affording me more time toward individual projects. I had already started a building a morphing editor for the Ashun Sound Machines Hydrasynth, so this is where I have been directing my energy. I expected to release this software closer to mid-summer, but now it’s looking like early to mid-May. In this short video I illustrate one of the ways I use HYDRAMORPH to tease incredible sounds out of this very special instrument. I have also made discounted pre-orders available at 20% off the full release price until the release. From the Purchase page:

HYDRAMORPH™ is a generative sound design tool for the Ashun Sound Machines Hydrasynth polyphonic synthesizer. The application is designed to algorithmically morph parameters on the instrument in realtime. Keep playing or record the results as up to 366 (so far) parameters are manipulated! Use HYDRAMORPH to create anything from chaotic, rapidly-changing textures to slow, evolving drones. HYDRAMORPH will help you navigate the expansive sound design possibilities of the Hyrdasynth through realtime morphing of customized parameter sets. Explore endless, unique soundscapes, illustrating how diverse and powerful the Hydrasynth is. This tool will help you uncover new territory hidden within the sonic depths of your instrument.

REV2 Degrader™ Available for Pre-order


The software I used to design the AudioCookbook REV2 Experimental Patch Bank has been refined and developed into a standalone application titled, REV2 Degrader™. It is currently in beta and will be available in early March, 2020. If you’re interested in getting a head start a pre-order page is available. Currently Mac OS is supported and a Windows version is planned. Demo videos are also coming soon.

VIDEO: Full Sets from Studio Z Nada Showcase

I performed this version of Vocalise Sintetica at on Friday, June 8, 2018 at Studio Z for the Nada showcase. The recording was captured by Mike Hodnick. In addition to the improvised elements, what makes this different from previous versions of the piece is that Studio Z is close to home, so I was able to bring my favorite instrument, the Moog Sub 37 for lead lines, melodies, drones, and arps. All the sound heard in this piece was generated by the AVGM (Audiovisual Grain Machine) controlled by an iPad, a Novation Circuit with custom samples and patches, a Minifooger Delay, and the Moog Sub 37.

This was an amazing evening of performances. The sets from Michael Flora, Mike Hodnick (Kindohm), and Spednar were all excellent. Mike also shared video of his own set of “tightly coupled audio and visuals” that he premiered at the event, which is definitely worth checking out:

Read on for the the official press release:

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VIDEO: John C.S. Keston at ISSTA

Last September 2017 I performed at the Irish Sound in Science Technology and the Arts Conference (ISSTA.ie) in Dundalk, Ireland (video by Daryl Feehely). The performance makes use of a custom Max patch controlled by an iPad, a Novation Circuit, a KeyStep, and a Minifooger Delay pedal. It occurred to me that it might be interesting to share the roots and evolution of this piece, so here goes. Continue reading

ISSTA Live Recording, September 2017

This recording was made during my appearance at the International Sound in Science Technology and the Arts (ISSTA) Conference in Ireland on September 8, 2017. The piece is a rendition of my composition, Vocalise Sintetica, first performed at Echofluxx14 in Prague. This piece is written so that it is allowed to evolve in a number of ways each time it is performed. Here’s how it changed this time around.

First of all it uses the Audiovisual Grain Machine (AVGM), which I update frequently. This time the updates were minor improvements to speed and efficiency. However, I did add some new audiovisual content. Secondly, in order to travel lightly, I limited the AVGM accompaniment to a single Novation Circuit. I loaded the Circuit with custom patches and samples, and used my Minifooger Delay on the AVGM (I usually leave it dry), but that was it, sonically. Other than that the Arturia KeyStep helped add a few tricks (mainly arps and one drone) to the mix.