Metal tailpieces vibrate sympathetically with the strings, and that can sometimes be heard as a faint shimmer with no well defined pitch. Sometimes it adds a little "third dimension" and color to the tone of the instrument, sometimes it's too much. If it is too much, one can glue fabric or other material to the backside of the metal to dampen it. Different metal tailpieces has different sympathetic vibrations.
Some luthiers such as Bob Benedetto says that a wood tailpiece makes a big difference to the sound, whereas others such as Mark Campellone don't think it makes such a big difference. Whatever, a wood tailpiece is cheaper to make, because the luthier can make it himself from wood he has in his shop, whereas a custom "signature" metal tailpiece most often has to be made by an outside vendor, then sent to an engraver and finally sent to a gold plater - much more complicated than a wood talpiece. Mark Lacey chages an extra $2500 for putting an engraved gold plated metal tailpiece on his Imperial model instead of an ebony tailpiece. |