I got hold of this bass, it had been laying around for 20 years almost without anyone playing it: http://www.talkbass.com/forum/showthread.php?t=193020 and took it to a luthier to fix a whole lot of things. When I first got it the bottom had losened. He fixed that, change the bridge, the strings. I got it back, it started to ramble quite loud around A(in every octave) so I took it back to him. He fixed that and said that he had put in extra woodblocks where they where needed and removed a couple of old fixings that he didn't think was necessay and now this: Aweek after I got it back it has started to buzz(when I play from the lowest A to the G-string B. It's not the ratteling that was before, just a little buzz. Like a fly is trapped inside... Now, if a just put my indexfinger lightly on a certian spot(the center of the back, 2/3 way up, it has a crack from almost the bottom of the back up to this point) the buzzing is gone. Now this guy is backed up so I wont get my bass ready in a couple of weeks if a decied to get it fixed and I'm starting at a new music(school) the 22:th this august. Can I just attach like a piece of gum(or something more aproprite) to the spot I'm talking about or must I fix it properly. Is it dangerous to play it if I dont get it fixed?