Soundboard crack

[A440A@AOL.COM]

Greetings, 
> I also am assuming that the movers
>will take no responsibility for the cracks.  

Nor should they.  If the movers had stressed the piano heavily enough to 
crack the soundboard, the case would probably be in ruins. If they had stored 
it in a cold truck, and then brought it into a warm enough environment to 
crack the soundboard, the finish would be crazed like, um, well, crazy.   
  Soundboard cracks seem to occur as the spruce ages, or is repeatedly cycled 
through humid/dry spells. 
>
>My question: is there a quick and simple repair to get this piano back
>in good condition?

    You can usually stop the buzzing noise with glue between the ribs and a 
wedge between the plate and board to hold in place until dry.  This is the 
quick, simple repair.  Removing plate and shimming in more involved, as is 
replacing the board. 
Regards, 
Ed Foote RPT