Hi Sherry, David,

I am duplicating, measure by measure, by hand, the two already almost identical files, in one of which strings bleed into measures with upper and lower voices for banjo, and in one of which all sounds as it should.
Surely, there will come a point at which one duplicative action will make the banjo cut out and the strings in, in the file that now works. That should produce a repro.

My HD has better than 2/3 of its 250 GB free, and I defrag it fairly regularly.

David, what you are getting sounds a lot like what I was getting with 2.3.2. The actions that seemed to provoke a crash were varied, and the only common action had been changing pitches, usually by an octave, either seconds or several minutes before.

all best,
mgj