Ron Nossaman "suggested"; "Grab everything - everything in the vicinity of where the sound seems to be coming from, and see if it stops. If it stops, you have your hand on the culprit. " This is what I came across the other day while tuning a Yamaha A1. All was going fine until I came upon the first wound string. There was this lousy buzz. I instinctively put my finger on the string at the agraffe, I suppose because this was where my ears told me where the noise was coming from. The buzz vanished. My finger was touching the plain length of wire, about 1/4", between the agraffe and the start of the winding. It occurred to me that this short bit of string had it's own speaking length determined by the agraffe and the winding and as such was creating it's own sound, an extremely high frequency. How one is supposed to cure such a problem I do not know. The customer didn't mention it and I didn't tell her about it either. Methinks I now know why Broadwood used to have the bass windings running through the bridge pins. As for other sources of buzzing, it's amazing how many ball point pens find their ways into pianos especially in university practice rooms. AF
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