Self-playing Guitars at Life science light event in the Botanical Garden

An interactive art installation at the Life science light event in the Botanical Garden. Self-playing guitars that entrain to each other and interact with people.

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The guitars play sounds based on the sounds in their surroundings.

How are humans able to follow a common pulse? Or act rhythmically together? RITMO researchers are exploring the phenomenon of entrainment, the ability to synchronize to each other. This is something that all humans (and other biological systems) do all the time. Yet, there are many things we do not understand about how it is done and the cognitive processes involved. It is also remarkably difficult to make computer systems that can do the same. That is what we are trying to do now.

Conceptual information

In this installation we explore how six self-playing guitars can entrain to each other. When they are left alone they will revert to playing a common pulse. As soon as they sense people in their surroundings they will start entraining to other pulses.

The result is a fascinating exploration of a basic physical and cognitive concept, and the musically interesting patterns that emerge on the border between order and chaos.

We encourage participants to hold the guitars to feel their resonance and to interact with the tones being played. The living body interacts with an electronic sound system played through the acoustic instrument. In this way, the installation explores the meeting points between the tactile and the kinesthetic, the body and the mind, and between motion and sound.

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Technical information

Guitar with micro-computer
The Bela micro-computer on the guitar

Each of the guitars is equipped with a Bela micro-computer, which produces electronic sound through an actuator placed on the back of the guitars. There are no external speakers, all the sound generation is coming from the vibration of the acoustic guitar. The sound is created through a physical model (the Karplus Strong algorithm). The guitars listen to their environment through a microphone, and uses a Firefly-inspired algorithm to entrain to each other. The pitch of the tones and colour of the light is controlled through an infrared distance sensor.

Published Feb. 13, 2019 8:49 PM - Last modified Oct. 22, 2020 1:41 PM