I have a Joseph Weiss 3/4-sized bass. I noticed today that the D string was very flat. (I had been playing it a few hours early with no problem) I went to tune it up, and after several tunes without much pitch change, the string snapped at the windings! I am pissed. That kind of thing is not supposed to happen! What could have caused this? It was fine before, and suddenly it's flat and tuning to the correct pitch/tension causes it to snap?? I then proceeded to loosen (not more than slightly) the other strinngs evenly as to not warp the neck/bridge, (a little of one peg, a little of the next etc) The sound post proceeded to fall over. Excellent. That is just what I was expecting to happen. This is a fairly new (I bought it new a few months ago) bass, and now a string snaps and the sound-post falls over. What do I do?