What is a half-rectified string?
Modern gut strings are machine -polished to a perfectly smooth surface, which inevitably damages the surface fibers. With half-rectified strings the polishing process is stopped before a completely smooth surface is obtained. Thus it is possible to imitate the hand polishing of the past and also the surface fibers remain mostly intact. This results in a longer playing life, better keeping in tune and better acoustc performance (broken fibers have a damping effect on the sound).