IT WAS DEVELOPED BY DR. CABRBONNEAU, FROM THE UNIVERSITY OF MONTPELLIER. IT IS SO NAMED BECAUSE THE END VIEW OF THE TRELLIS RESEMBLES THE SHAPE OF THE MUSICAL INSTRUMENT, THE LYRE.

THE TRUNK IS DIVIDED INTO TWO CORDONS. THESE CORDONS ARE GROWN ALONG THE TWO PARALLEL WIRES, PRUNED IN SPURS.

THE PRINCIPAL ADVANTAGE IS AN IMPROVEMENT TO THE CANOPY MICROCLIMATE, BECAUSE IT ALLOWS GOOD AIR CIRCULATION AND SUNLIGHT PENETRATION.

IT IS EXPENSIVE TO ESTABLISH AND MAINTAIN.