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HIGH TWIST HALF RECTIFIED PLAIN GUT STRINGS INTRODUCTION TECHNICAL
SPECIFICATIONS AND FIELD OF APPLICATION Plain gut strings are now exclusively "half rectified" (HR). Oiled fully rectified strings are available by special order. String -varnishing is a modern treatment which was never used historically (gut strings were kept in olive or almond oil) and its sole purpose is granting a longer string playing life. But this happens at the cost of other aspects, the most important being a loss of sound quality, brightness for example, but also the bowing attack is not as efficient as with unvarnished gut. The surface of the HR strings is only partly rectified, imitating the manual polishing techique of earlier times to obtain a true string. With this method the amount of fibers damaged by the abrasive action is noticeably reduced as compared with strings rectified with modern procedures. The advantages are: better stability against climatic changes, longer playing life and better acoustic performance. These strings best imitate historic hand- polishing in that they damage only a small amount of gut fibers as compared with current rectifying methods. Owing to the special manufacturing technique employed in the production of the half-rectified string type, the diameters in this table indicate a mean value. E.g. a 66 string indicates a possible diameter-window between 65 and 67. Strings more than 1.65 mm thick are oiled. NOT ALL GUT STRINGS ARE ALIKE: THE DIFFERENCE IS MADE BY THE STRICT RESPECT TO THE MANUFACTURING PROCESSES FOLLOWED FOR CENTURIES BY THE STRINGMAKING MASTERS.
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