pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3995-LadyLucyRamsay2.ps) >>/Users/jc/w/tmp/Tune-3995-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Scotland/LadyLucyRamsay2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_39954.log 703024 Log file, useful mostly for debugging
Coll_39955.log 564445 Log file, useful mostly for debugging
Sess-39953.log 2941405 Log file, useful mostly for debugging
Tune-3995-LadyLucyRamsay2.abc 1843 ABC music file with the extracted tune(s)
Tune-3995-LadyLucyRamsay2.ps 52528 PostScript
Tune-3995-LadyLucyRamsay2.txt 1843 Plain-text file with the extracted tune(s)
Tune-3995-get.log 4937 Log file, useful mostly for debugging
These files should be available for 24 hours.