Daniel Sinier and Françoise de Ridder opened their Paris workshop in 1971 and have restored about two thousand antique plucked string instruments for public and private collections. They have lectured, written articles, and published two books about guitars made in France between 1650 and 1950.
▪ bio current as of 2018
2018
AL#133 p.34
D.-and-F. Sinier-de-Ridder
▪ So you need to restore a guitar that is a third of a millienium old. Of course it was originally a Baroque guitar. A couple hundred years ago somebody chopped it into a Romantic-era 6-string guitar. No prob, you’ll just find a similar authentic instrument for a guide. Except there aren’t any. Spain was packed with them 300 years ago, but now not a single one is known to exist in original condition. Nonetheless, a full and successful restoration is made.
2015
AL#123 p.16
D.-and-F. Sinier-de-Ridder
▪ This guitar, built in 1875, is the 2nd instrument made in the second epoch of Antonio de Torres, and was subjected to numerous botched repairs over the years. The authors undertake a thorough restoration to put the guitar in playing condition.
2014
AL#119 p.28
D.-and-F. Sinier-de-Ridder
▪ A couple hundred years ago, this Stradivari guitar was not only old, it was old-fashioned. The owner had it modernized from a 5-course Baroque guitar to a 6-string Romantic guitar. That meant making a new neck, removing the rosette, and opening the body to make a lot of changes to the bracing and lining. Nowadays, those changes are not just outdated, they are anachronistic and kind of sacrilegious. Sinier and de Ridder got the job of making a new, original-style neck and returning the instrument to Baroque configuration.
2010
AL#101 p.22
D.-and-F. Sinier-de-Ridder
▪ In the 19th century Baroque guitars were not treasured antiques, they were merely old-fashioned. One that was chopped into a “Spanish” guitar back is restored back to its original configuration by a Parisian lutherie team.