JHONSAGERO · EXCELLENCE IN INSTRUMENT MAKING

Welcome to the world of fine instrument making

Discover woods admired for the natural beauty of their grain, and follow the craftsmanship that transforms carefully selected materials into instruments with a distinctive identity.

In string instrument making, wood is far more than a raw material. Careful selection considers grain orientation and consistency, density, stiffness, elasticity, dimensional stability, and acoustic response.

O Spruce German (Picea abies) is traditionally valued for soundboards because of its balance of low weight, specific stiffness, and ability to transmit vibration. Mogno Sapelli (Entandrophragma cylindricum), When properly selected and seasoned, Sapele mahogany offers density, stability, and a particularly striking grain.

This presentation highlights the uniquely figured tops and backs da 44 cm viola e do full-size double bass. Each piece reveals natural characteristics that make the instrument visually unique and contribute to its individual tonal personality.

From making the mold and bending the ribs to arching, gluing, finishing, varnishing, and final setup, every stage requires geometric accuracy, thickness control, precise fitting, and respect for traditional instrument-making principles.

JHONSAGERO workshop — international instrument making

Handcrafted instrument making, selected tonewoods, and string instruments made with technical precision.

Fine tonewoodsSelected according to grain, density, stability, and acoustic purpose.

Handcrafted constructionMold, arching, ribs, blocks, gluing, and finishing executed with precision.

Acoustics and setupSoundpost, bridge, strings, action, and tonal response evaluated as a complete system.

Distinctive identityEach instrument preserves the natural beauty of the wood and the signature of hand craftsmanship.

Accessories and components

A selection of accessories and components for instrument making, maintenance, and instrument presentation.