Karen - What note are you talking about?   Is it "you.. see...,"  at the beginning, because I listened to it a few times and its not off.   I think its sounded strange because Sharon was off a little.  Charles has quite a scream!  Maybe it got off to a slow start because the kids nerves got to them.    Albeit they were children, but an entire string session - wow!   Give it to me for colors and Grace at the piano.... please!