Léon Light

Theremin-inspired, Hands-free, Motion-detecting Musical Instrument

“While the Theremin is notoriously difficult to play, Léon Light, in its raw and untamed form, is even more unruly — perhaps even unplayable.”

Light is the key to taming Léon. Movement detected creates sound. Wild when unrestrained. Watchful when Focused, Tempered & Trained. Léon’s discipline is impeccable. Yet there is always the danger that Léon will devour his trainer!

Features:

• Motion detection within a visual field
• Continuous pitch control across the audible range
• Filtering and tempering to “Tame the Lion”
• Slides, textures, and rhythmic patterns via quantization
• FX Box with Space–Tone touchpad and Width parameter
• Quick Select Instruments. Pre-program scales, chords, and songs.

Not A Theremin!

The Theremin responds to movement within electromagnetic fields. Léon Light responds to motion detected within a visual field.

Inventor’s note:
Early demos of the prototype always elicited the response: “Oh, it’s like a Theremin!”. Clinging to the conceit of originality, I would protest and explain the differences — to no avail. Today, I embrace the comparison. “Yes, it is like a Theremin — but even more difficult to control!”

Taming the Lion

Adjust quantization, temperament, instrument range, focus, attack style, pitch class filtration, and real-time effects. Léon can sing smooth scales & arpeggios. With proper light conditions, training and playing technique, Léon is a reliable, expressive musical instrument. Yet always remember — Léon is wild at heart.

📘 Arpeggiano User Guide

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