pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4017-20752_Sweet_Ellen.ps) >>/Users/jc/w/tmp/Tune-4017-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/20752_Sweet_Ellen.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_40173.log 417811 Log file, useful mostly for debugging
Find_40175.log 1455 Log file, useful mostly for debugging
Tune-4017-20752_Sweet_Ellen.abc 660 ABC music file with the extracted tune(s)
Tune-4017-20752_Sweet_Ellen.ps 34976 PostScript
Tune-4017-20752_Sweet_Ellen.txt 660 Plain-text file with the extracted tune(s)
Tune-4017-get.log 15989 Log file, useful mostly for debugging
Tune-40170-get.log 9361 Log file, useful mostly for debugging
Tune-40172-get.log 11581 Log file, useful mostly for debugging
Tune-40173-get.log 9405 Log file, useful mostly for debugging
Tune-40174-get.log 4105 Log file, useful mostly for debugging
Tune-40177-get.log 3908 Log file, useful mostly for debugging
These files should be available for 24 hours.