Emmanuel Gradoux-Matt, violin maker, restorer, violin expert and dealer for over 30 years and CEO of Gradoux-Matt Rare Violins, Gostrings LLC, WMP Concert Hall corp. and One to One Sevices LLC. Gradoux-Matt Rare Violins LLC has established itself as today's premier dealer and restorer of fine instruments. Trusted by world's foremost musicians and institutions, Gradoux-Matt Rare Violins workshop continues to provide superior care for string instruments, including sound adjustment and restoration.