Turn on/off the embedded sound - Tenor Violin, K-Bow, and basic onboard processing, Sydney 2019

bows and wheels

new and old bowing technologies

The bow used in the recording embedded on this page is the interactive k-bow in combination with my tenor violin. I'm manipulating (with the left hand) the pitch side of the equation very little; most of what you are hearing is actualised by bow techniques. Sensors measure the bow speeds, starts and stops, bow positions relative to bridge and tilt, bow hair pressure, and the parts of the bow used from frog to tip. These movements are converted into MIDI information which then transforms the actual sound of the tenor violin in real time. There is no sampling used in this extract, the sounds are rendered in quadraphonic playback (reduced to stereo here) transposed and altered by various room resonances (reverbs). That's it. But a warning: the k-bow is no longer supported by its manufacturer Keith McMillen.

An interactive bow might be framed as technology enhanced music because my use of digital technology does not replace the kinaesthetic relationships or the haptic feedback between musician and instrumental technique, it just extends the creative possibilities.

Out of the myriad of bow techniques (détaché, spiccato, ricochet, circular, col lego, etc), extreme and slow bow pressure is the one that classical violinists never go near (I guess they don't do circular bowing either, as they are taught on pain of death to keep a straight bow at all times). This is not to be confused with sub-tone techniques - controlled extreme bow pressure but much faster - producing tones below the normal range of the instrument ( Mari Kimura is a virtuoso at this technique). Having found a box (suitable sound resonator) on the street, I decided on making an automaton that would perform this function and fit well into the new series of bots for the Rosenberg Museum. Unlike a Homo Sapien, a machine will run until mechanical breakdown or someone switches the power off. However with a little human intervention, a wide variety of sonic results are revealed with the Slow Bow

Materials (and re-cycled junk) created in the second half of the 20th century never cease to amaze in their musical potential once the original function is bypassed eg. polystyrene vegetable boxes are loud if unsubtle sound resonators. I am forever grateful to Martin Riches for discovering the extended uses of Acrylic Perspex. While busy at work on the Data Driven Violin, he looked for a more reliable material for the wheel bow than the traditional wood used in the hurdy gurdy, and the wafers used in the Violano. He discovered that a Perspex wheel has great gripping power (without the use of Rosin) producing that classic slip-hold-slip-hold phenomenon that gives us the saw tooth wave pattern of the bowed string sound. There are two installed on El Lubricato. And in recent years I've experimented with this idea and come up with a hand held battery powered, flexible wheel. The little 3 Volt motors don't have much in the way of torque but make up for it in speed. I have augmented four to be used with the 32 String Web Automaton

Friction is another way of describing the bow at work and the Help Violin! provides a disturbing use of a violin as dowel holder grinding away on a sonic table top. 'Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact' it says in the dictionary and who's to argue with that? And unlike a digital loop the Help Violin never quite repeats its call for aid the same way twice.

Why reference the golden age of mechanical music as a lunch pad for experimentation? History is rich in options that can be repurposed to take on our current predicaments. The Data Driven Violin delivers, not so much enhanced functionality, but philosophical rationals and processes as to the how and why music should exist. In this case, the real time grubby workings of Wall Street traders and their algorithms can be used to drive a musical instrument that was first witnessed via a church fresco in Milan in 1530. The ugliness of contemporary capitalism consumes the traditional notions of European beauty. Despite automation, the physical limits of the instrument and the imperfection of materials create non repeatable sonic artefacts such as seemingly random harmonics (evident here in the Chromatic Fantasy)

Other contexts for The Data Violin (basically a MIDI driven two wheel, two string instrument) can be found in the four examples below.

Turn audio on/off - Data Violin tuned in unison with Mechanical Industrial Wheel Violin and Mandolin (played manually).

Turn audio on/off - Each wheel/string on the Data Violin plays an independent counterpoint.

Turn audio on/off - Data Violin is heard with its fingers only (the wheels turned off), accompanied by double violin (played manually).

Turn audio on/off - The mechanical wheel has become 'jammed' and the consequential stuttering giving rise to variable patterns.

AI already churns out compositions in the style of Bach or Charlie Parker but so far it has proven a less than a satisfying agent in the physical expression of music; music remains quite basic in evolutionary terms and can use or abuse both ancient, new, and novel technologies.

© Jon Rose 2018

What's New

July 2022
'Fringe Benefits 1977​-​1985' - Historic glimpses of Improvised and Experimental Music in Australia; making available recordings from the original vinyl and cassette catalogue on Fringe Benefits.
April 2022
'Honey Ants' - New and Experimental Music Album from Alice Springs featuring Luiz Gubeissi and Jon Rose on Thödol Records.
Nîmes, France
May 2021
'State of Play' titles my double album featuring duo improvisations and recent projects with a cast of great collaborators...out now!
ReR Recommended Records, London
May - October 2021
'Whistling in the Dark' embraces a set of duets between various pied butcherbirds (from field recordings in outback Australia) and virtuosic human musicians (in home lockdown) performing transcriptions of this extraordinary avian music.
On Line Project available September
November 2021 - Premiere
'Mendel's Mix' - A commission for Brno Contemporary Orchestra. Finally after many Covid-19 delays, the work is performed. Inspired by the 'father' of genetics, Johann Gregor Mendel, and based on the structure of DNA, you can mix your own version here.
Brno, Czech Republic
Latest Stuff
The Data Violin, Martin Riches, Sukandar Kartadinata, and Jon Rose, Rosenberg Museum, 2015
The Slow Bow, The Rosenberg Museum, re-used box found on the street, Sydney 2018
El Lubricato was created from an oil drum as resonator, an Ikea table cut in half as frame, and various found objects, Rosenberg Museum, 2018
The 32 String Web semi-automaton with double plectrums and hand held bowing wheels, Rosenberg Museum, 2018
The HELP! violin rumbles and grinds its way around an acoustic table top, Rosenberg Museum, 2018
Schroedinger's Cat Violin suggests an invitation to the imagination. Can an unseen bow action be proven to have taken place? (n.b. The lid has been taken off to show the insides of the box)
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