Image 1: Giromin’s version 0_1

Giromin is a digital dance and music instrument that allows the performer to electronically produce sounds from free gestures. Like a Theremin, movements in the air produce sounds, but the Giromin is a wearable instrument that turns the body into a musical instrument, allowing to make music and dance at the same time. It is a meta-composition artifact that composers and improvisers have to move the body in certain ways to make sounds with the constraints I set up for the instrument.

It is mainly made out of a micro-controller with a radio transceiver and an accelerometer, magnetometer, and gyroscope. The buttons can be put on its box or extended to buttons on the performer’s fingers to change preconfigured modes.

Giromin v_0_1 circuit diagram and laser-cut structure 3D model


Images 3, 4 and 5 – Giromin v0_2

It was developed in 2014 by me at the beginning of the Batebit Artesania Digital. It is an instrument where the modules can be attached to different limbs of the body. The information captured by the sensors is sent wirelessly to a sound synthesis module. The infinite possibilities of this instrument allow its adaptation to diverse uses.

It has already been used by several musicians and dancers in rapid experimentations, where they have explored numerous ways of use, fixing it on the head, arms, hand, trunk, and legs. It can be used as a controller of samplers and synthesizers or to process the sounds of other musical instruments. Because it is a wireless instrument, it can be either an individual instrument or a collaborative instrument, that is, played by more than one person at a time.

Images 6 and 7 – Giromin v0_1_5, with the buttons expanded to the hands to change the sequencer mode.

Image 8 – 3D model of the next version of the Giromin hand-controller, to select the notes from the arpeggiator.

Here are some example uses:

Teaser Pachka + Batebit: This was the first performance I used it, with the first draft of the “Gira” scene

Jam Session:

On this Jam session, Helder Vasconcelos improvised with Giromin solo on its first version.

Cláudio Rabeca with Giromin and then Helder Vasconcelos playing the Giromin in collaboration with Claudio’s rabeca (instrument similar to the violin)

Giromin Evaluations:

Helder Vasconcelos – Dancer, Musician and Actor

Jam da Silva – Musician

Maria Acserad and Conrado Falbo (Dancers)

This video compiles many experimentations with Giromin and with a Microsoft Kinect sensor.

Gilú Amaral (musician), Yuri Queiroga (musician) Rodrigo Felix (musician, actor and dancer) and Lucas dos Prazeres (Dancer and Musician)