Harp Help (buzzing)
  "buzzing" is a common problem with harps but with a bit of
  perseverance you can isolate the problem and fix it....
  In the following, we will step by step, check out and identify 
  the "buzzing" and fix-it.
  Step 1....string tie rods touching.
  2 of the string tie rods are
                      touching>>>>
  This can cause buzzing
  when strings are plucked.
  Remedy....Seperate them
  with a long implement such
  as a screw driver.
  Done! Now check the
  others....when they are
  all done, play your
  harp to see if that has
  eliminated the "buzz"
...If not go on to step 2.
  Step 2....Loose stringrib nuts.
  You can view the stringrib
  nut through the top
  soundhole in the back of
  the harp, there is another
at the bottom, this is
accessed via the soundhole
  in the base of the harp.
      Even though there is a
  spring washer underneath
  the nut, it can become
  loose and vibrate....hence
  "buzzing"
 
  Remedy....tighten the nuts
  with a 5.5mm socket.
  Use this for the top nut
  Use this for the bottom nut
   Like so....through the base
  soundhole (as viewed through
  the lowest back soundhole)
  After this is done, try the
  harp again.....if "buzzing"
  persists....go to Step 3
Step 3 not yet built